diff --git a/util/db-mysql.sql b/util/db-mysql.sql
index a1c18335..22f0fd6b 100644
--- a/util/db-mysql.sql
+++ b/util/db-mysql.sql
@@ -173,7 +173,9 @@ create table if not exists `user_settings` (
    `username` char(64) not null unique,
    `pagelen` int default 20,
    `theme` char(8) default 'default',
-   `lang` char(2) default NULL
+   `lang` char(2) default null,
+   `ga_enabled` int default 0,
+   `ga_secret` varchar(255) default null
 );
 
 create index `user_settings_idx` on `user_settings`(`username`);
diff --git a/util/db-upgrade-0.1.24-vs-0.1.25.sql b/util/db-upgrade-0.1.24-vs-0.1.25.sql
new file mode 100644
index 00000000..e1a0e674
--- /dev/null
+++ b/util/db-upgrade-0.1.24-vs-0.1.25.sql
@@ -0,0 +1,4 @@
+
+alter table `user_settings` add column `ga_enabled` int default 0;
+alter table `user_settings` add column `ga_secret` varchar(255) default null;
+
diff --git a/util/postinstall.sh.in b/util/postinstall.sh.in
index 8a16f7d7..cceb88a0 100755
--- a/util/postinstall.sh.in
+++ b/util/postinstall.sh.in
@@ -379,6 +379,7 @@ webui_install() {
    cp -R webui/.htaccess $DOCROOT
    chmod 770 $DOCROOT/tmp $DOCROOT/images
    chgrp $WWWGROUP $DOCROOT/tmp
+   chgrp $WWWGROUP $DOCROOT/system/helper/phpqrcode/cache
 
    echo "<?php" > $DOCROOT/config-site.php
    echo >> $DOCROOT/config-site.php
diff --git a/webui/controller/common/menu.php b/webui/controller/common/menu.php
index efe8c065..e035601a 100644
--- a/webui/controller/common/menu.php
+++ b/webui/controller/common/menu.php
@@ -9,6 +9,7 @@ class ControllerCommonMenu extends Controller {
       $this->template = "common/menu.tpl";
 
       $db = Registry::get('db');
+      $session = Registry::get('session');
 
       $this->load->model('saas/customer');
 
@@ -18,6 +19,8 @@ class ControllerCommonMenu extends Controller {
 
       $this->data['settings'] = $this->model_saas_customer->get_customer_settings_by_email();
 
+      $this->data['realname'] = $session->get('realname');
+
       $this->render();
    }
 
diff --git a/webui/controller/login/ga.php b/webui/controller/login/ga.php
new file mode 100644
index 00000000..d51cd254
--- /dev/null
+++ b/webui/controller/login/ga.php
@@ -0,0 +1,93 @@
+<?php
+
+
+class ControllerLoginGA extends Controller {
+   private $error = array();
+
+   public function index(){
+
+      $this->id = "content";
+      $this->template = "login/ga.tpl";
+      $this->layout = "common/layout-empty";
+
+
+      $request = Registry::get('request');
+      $session = Registry::get('session');
+
+      $db = Registry::get('db');
+
+      $this->load->model('user/auth');
+      $this->load->model('user/user');
+      $this->load->model('user/prefs');
+
+      if(ENABLE_SAAS == 1) {
+         $this->load->model('saas/ldap');
+         $this->load->model('saas/customer');
+      }
+
+      require(DIR_BASE . 'system/helper/PHPGangsta_GoogleAuthenticator.php');
+
+      $this->data['title'] = $this->data['text_login'];
+      $this->data['title_prefix'] = TITLE_PREFIX;
+
+      $this->data['failed_login_count'] = $this->model_user_auth->get_failed_login_count();
+
+
+      if($this->request->server['REQUEST_METHOD'] == 'POST' && $this->validate() == true) {
+
+         $GA = new PHPGangsta_GoogleAuthenticator();
+
+         $settings = $this->model_user_prefs->get_ga_settings($session->get('username'));
+
+         if(strlen($this->request->post['ga_code']) > 5 && $GA->verifyCode($settings['ga_secret'], $this->request->post['ga_code'], 2)) {
+
+            $session->set("ga_block", "");
+
+            $this->model_user_prefs->get_user_preferences($session->get('username'));
+
+            if(ENABLE_SAAS == 1) {
+               $this->model_saas_customer->online($session->get('email'));
+            }
+
+            LOGGER('logged in');
+
+            if(isAdminUser() == 1) {
+               header("Location: " . SITE_URL . "index.php?route=health/health");
+               exit;
+            }
+
+            header("Location: " . SITE_URL . "search.php");
+            exit;
+         }
+         else {
+            $this->model_user_auth->increment_failed_login_count($this->data['failed_login_count']);
+            $this->data['failed_login_count']++;
+         }
+
+         $this->data['x'] = $this->data['text_invalid_pin_code'];
+
+      }
+
+      $this->render();
+   }
+
+
+   private function validate() {
+
+      if(!isset($this->request->post['ga_code'])){
+         $this->error['ga_code'] = $this->data['text_invalid_data'];
+      }
+
+
+      if (!$this->error) {
+         return true;
+      } else {
+         return false;
+      }
+
+   }
+
+
+}
+
+?>
diff --git a/webui/controller/login/login.php b/webui/controller/login/login.php
index f702ea57..43d0b5e0 100644
--- a/webui/controller/login/login.php
+++ b/webui/controller/login/login.php
@@ -43,21 +43,27 @@ class ControllerLoginLogin extends Controller {
 
          if($this->model_user_auth->checkLogin($this->request->post['username'], $_POST['password']) == 1) {
 
-            $this->model_user_prefs->get_user_preferences($session->get('username'));
-
-            if(ENABLE_SAAS == 1) {
-               $this->model_saas_customer->online($session->get('email'));
-            }
-
-            LOGGER('logged in');
-
-            if(isAdminUser() == 1) {
-               header("Location: " . SITE_URL . "index.php?route=health/health");
+            if($session->get("ga_block") == 1) {
+               header("Location: " . SITE_URL . "index.php?route=login/ga");
                exit;
             }
+            else {
+               $this->model_user_prefs->get_user_preferences($session->get('username'));
 
-            header("Location: " . SITE_URL . "search.php");
-            exit;
+               if(ENABLE_SAAS == 1) {
+                  $this->model_saas_customer->online($session->get('email'));
+               }
+
+               LOGGER('logged in');
+
+               if(isAdminUser() == 1) {
+                  header("Location: " . SITE_URL . "index.php?route=health/health");
+                  exit;
+               }
+
+               header("Location: " . SITE_URL . "search.php");
+               exit;
+            }
          }
          else {
             $this->model_user_auth->increment_failed_login_count($this->data['failed_login_count']);
diff --git a/webui/controller/user/settings.php b/webui/controller/user/settings.php
index 92324258..8296e733 100644
--- a/webui/controller/user/settings.php
+++ b/webui/controller/user/settings.php
@@ -12,6 +12,8 @@ class ControllerUserSettings extends Controller {
 
 
       $request = Registry::get('request');
+      $session = Registry::get('session');
+
       $db = Registry::get('db');
 
       $this->load->model('user/auth');
@@ -19,6 +21,10 @@ class ControllerUserSettings extends Controller {
       $this->load->model('user/user');
       $this->load->model('group/group');
 
+      require(DIR_BASE . 'system/helper/PHPGangsta_GoogleAuthenticator.php');
+
+      $this->data['ga'] = $this->model_user_prefs->get_ga_settings($session->get('username'));
+
       $this->document->title = $this->data['text_settings'];
   
       $d = $r = '';
diff --git a/webui/index.php b/webui/index.php
index 27356521..7c16f3b8 100644
--- a/webui/index.php
+++ b/webui/index.php
@@ -70,7 +70,11 @@ Registry::set('actions', $actions);
 Registry::set('import_status', $import_status);
 
 
-if(Registry::get('username')) {
+
+if($session->get("ga_block") == 1 && $request->get['route'] != 'login/logout' ) {
+   $action = new Router('login/ga');
+}
+else if(Registry::get('username')) {
 
    if(isset($request->get['route'])){
       $action = new Router($request->get['route']);
diff --git a/webui/language/de/messages.php b/webui/language/de/messages.php
index f5d5509e..425543a9 100644
--- a/webui/language/de/messages.php
+++ b/webui/language/de/messages.php
@@ -460,5 +460,12 @@ $_['text_with_selected'] = 'mit ausgewählten';
 
 $_['text_download_all_hits'] = "Download all";
 $_['text_archive_size_before_compression'] = "Archive size before compression";
+$_['text_create_new_secret'] = "Create new secret";
+$_['text_enter_google_authenticator_code'] = "Enter Google Authenticator code";
+$_['text_google_authenticator_code'] = "Google Authenticator code";
+$_['text_google_authenticator_settings'] = "Google Authenticator settings";
+$_['text_invalid_pin_code'] = "Invalid pin code";
+$_['text_qr_code'] = "QR";
+$_['text_refresh_qr_code'] = "Refresh QR code";
 
 ?>
diff --git a/webui/language/en/messages.php b/webui/language/en/messages.php
index 6ccce246..262410e5 100644
--- a/webui/language/en/messages.php
+++ b/webui/language/en/messages.php
@@ -57,6 +57,7 @@ $_['text_copied'] = "Copied";
 $_['text_counters'] = "Counters";
 $_['text_cpu_load'] = "CPU load";
 $_['text_cpu_usage'] = "CPU usage";
+$_['text_create_new_secret'] = "Create new secret";
 $_['text_customers'] = "Customers";
 
 $_['text_daily_quarantine_report'] = "Daily quarantine report";
@@ -106,6 +107,7 @@ $_['text_empty_search_criteria'] = "'Empty criteria'";
 $_['text_empty_search_result'] = "Empty search result. Try adding the wildcard character(*) after a word snippet, eg. duplic* to find \"duplicate\", \"duplicated\", etc.";
 $_['text_enable'] = "Enable";
 $_['text_enabled'] = "enabled";
+$_['text_enter_google_authenticator_code'] = "Enter Google Authenticator code";
 $_['text_enter_one_email_address_per_line'] = "Enter one email address per line";
 $_['text_enter_one_group_per_line'] = "Enter one group per line";
 $_['text_enter_search_terms'] = "Enter your search terms";
@@ -139,6 +141,8 @@ $_['text_folders'] = "Folders";
 $_['text_from'] = "From";
 $_['text_from_domain'] = "From domain";
 
+$_['text_google_authenticator_code'] = "Google Authenticator code";
+$_['text_google_authenticator_settings'] = "Google Authenticator settings";
 $_['text_group_id'] = "Group id";
 $_['text_groupname'] = "Group name";
 $_['text_groups'] = "Groups";
@@ -165,6 +169,7 @@ $_['text_invalid_email'] = "Invalid email";
 $_['text_invalid_email_or_password'] = "Invalid email or password";
 $_['text_invalid_gid'] = "Invalid gid";
 $_['text_invalid_password'] = "Invalid password";
+$_['text_invalid_pin_code'] = "Invalid pin code";
 $_['text_invalid_policy_group'] = "Invalid policy group";
 $_['text_invalid_policy_name'] = "Invalid policy name";
 $_['text_invalid_policy_setting'] = "Invalid policy setting";
@@ -253,6 +258,7 @@ $_['text_purge_all_messages_from_quarantine'] = "Purge all your own messages fro
 $_['text_purge_selected_messages'] = "Purge selected messages";
 $_['text_purged'] = "Purged";
 
+$_['text_qr_code'] = "QR";
 $_['text_queue_status'] = "Queue status";
 $_['text_quick_search'] = "Quick search";
 
@@ -260,6 +266,7 @@ $_['text_realname'] = "Realname";
 $_['text_recipient'] = "Recipient";
 $_['text_ref'] = "Reference";
 $_['text_refresh_period'] = "Refresh period";
+$_['text_refresh_qr_code'] = "Refresh QR code";
 $_['text_relay_details'] = "Relay details";
 $_['text_relay_status'] = "Relay status";
 $_['text_remove'] = "Remove";
diff --git a/webui/language/es/messages.php b/webui/language/es/messages.php
index fe0ca1f8..3ffbfa23 100644
--- a/webui/language/es/messages.php
+++ b/webui/language/es/messages.php
@@ -459,5 +459,12 @@ $_['text_with_selected'] = 'Con seleccionado';
 
 $_['text_download_all_hits'] = "Download all";
 $_['text_archive_size_before_compression'] = "Archive size before compression";
+$_['text_create_new_secret'] = "Create new secret";
+$_['text_enter_google_authenticator_code'] = "Enter Google Authenticator code";
+$_['text_google_authenticator_code'] = "Google Authenticator code";
+$_['text_google_authenticator_settings'] = "Google Authenticator settings";
+$_['text_invalid_pin_code'] = "Invalid pin code";
+$_['text_qr_code'] = "QR";
+$_['text_refresh_qr_code'] = "Refresh QR code";
 
 ?>
diff --git a/webui/language/hu/messages.iso-8859-2.php b/webui/language/hu/messages.iso-8859-2.php
index 7220c590..b40283c3 100644
--- a/webui/language/hu/messages.iso-8859-2.php
+++ b/webui/language/hu/messages.iso-8859-2.php
@@ -57,6 +57,7 @@ $_['text_copied'] = "
 $_['text_counters'] = "Számlálók";
 $_['text_cpu_load'] = "CPU terhelés";
 $_['text_cpu_usage'] = "CPU használat";
+$_['text_create_new_secret'] = "Új kód";
 $_['text_customers'] = "Ügyfelek";
 
 $_['text_daily_quarantine_report'] = "Napi karantén riport";
@@ -106,6 +107,8 @@ $_['text_empty_search_criteria'] = "'
 $_['text_empty_search_result'] = "Nincs találat a keresésre. Próbáljon meg csillagot (*) tenni a szótöredék után, pl. titkos*, hogy megtalálja a \"titkosítás\", \"titkosított\", stb. szavakat tartalmazó leveleket.";
 $_['text_enable'] = "Engedélyez";
 $_['text_enabled'] = "engedélyezve";
+$_['text_enter_google_authenticator_code'] = "Adja meg a Google Authenticator kódot";
+
 $_['text_enter_one_email_address_per_line'] = "Egy sorba egy email címet írjon";
 $_['text_enter_one_group_per_line'] = "Egy sorba egy csoportnevet írjon";
 $_['text_enter_search_terms'] = "Írja be a keresési feltételeket";
@@ -145,6 +148,8 @@ $_['text_help'] = "Seg
 $_['text_history'] = "Történet";
 $_['text_home'] = "Kezdőlap";
 
+$_['text_google_authenticator_code'] = "Google Authenticator kód";
+$_['text_google_authenticator_settings'] = "Google Authenticator beállítások";
 $_['text_group_id'] = "Csoport azonosító";
 $_['text_groupname'] = "Csoportnév";
 $_['text_groups'] = "Csoportok";
@@ -165,6 +170,7 @@ $_['text_invalid_email'] = "
 $_['text_invalid_email_or_password'] = "Érvénytelen email cím vagy jelszó";
 $_['text_invalid_gid'] = "Érvénytelen csoportazonosító";
 $_['text_invalid_password'] = "Érvénytelen jelszó";
+$_['text_invalid_pin_code'] = "Érvénytelen pin kód";
 $_['text_invalid_policy_group'] = "Érvénytelen házirend szonosító";
 $_['text_invalid_policy_name'] = "Érvénytelen házirend név";
 $_['text_invalid_policy_setting'] = "Érvénytelen beállítás(ok)";
@@ -253,6 +259,7 @@ $_['text_purge_all_messages_from_quarantine'] = "
 $_['text_purge_selected_messages'] = "Kiválasztott üzenetek eltávolítása";
 $_['text_purged'] = "Eltávolítva";
 
+$_['text_qr_code'] = "QR";
 $_['text_queue_status'] = "Queue státusz";
 $_['text_quick_search'] = "Gyorskeresés";
 
@@ -260,6 +267,7 @@ $_['text_realname'] = "N
 $_['text_recipient'] = "Címzett";
 $_['text_ref'] = "Hivatkozás";
 $_['text_refresh_period'] = "Frissítési periódus";
+$_['text_refresh_qr_code'] = "QR kód frissítése";
 $_['text_relay_details'] = "Relay részletek";
 $_['text_relay_status'] = "Relay státusz";
 $_['text_remove'] = "Törlés";
diff --git a/webui/language/hu/messages.php b/webui/language/hu/messages.php
index 4bdd0cd8..af956fcc 100644
--- a/webui/language/hu/messages.php
+++ b/webui/language/hu/messages.php
@@ -57,6 +57,7 @@ $_['text_copied'] = "Átmåsolva";
 $_['text_counters'] = "SzĂĄmlĂĄlĂłk";
 $_['text_cpu_load'] = "CPU terhelĂŠs";
 $_['text_cpu_usage'] = "CPU hasznĂĄlat";
+$_['text_create_new_secret'] = "Új kód";
 $_['text_customers'] = "Ügyfelek";
 
 $_['text_daily_quarantine_report'] = "Napi karantĂŠn riport";
@@ -106,6 +107,8 @@ $_['text_empty_search_criteria'] = "'Üres feltétel'";
 $_['text_empty_search_result'] = "Nincs talĂĄlat a keresĂŠsre. PrĂłbĂĄljon meg csillagot (*) tenni a szĂłtĂśredĂŠk utĂĄn, pl. titkos*, hogy megtalĂĄlja a \"titkosĂ­tĂĄs\", \"titkosĂ­tott\", stb. szavakat tartalmazĂł leveleket.";
 $_['text_enable'] = "EngedĂŠlyez";
 $_['text_enabled'] = "engedĂŠlyezve";
+$_['text_enter_google_authenticator_code'] = "Adja meg a Google Authenticator kĂłdot";
+
 $_['text_enter_one_email_address_per_line'] = "Egy sorba egy email cĂ­met Ă­rjon";
 $_['text_enter_one_group_per_line'] = "Egy sorba egy csoportnevet Ă­rjon";
 $_['text_enter_search_terms'] = "Írja be a keresési feltételeket";
@@ -145,6 +148,8 @@ $_['text_help'] = "SegĂ­tsĂŠg";
 $_['text_history'] = "TĂśrtĂŠnet";
 $_['text_home'] = "Kezdőlap";
 
+$_['text_google_authenticator_code'] = "Google Authenticator kĂłd";
+$_['text_google_authenticator_settings'] = "Google Authenticator beĂĄllĂ­tĂĄsok";
 $_['text_group_id'] = "Csoport azonosĂ­tĂł";
 $_['text_groupname'] = "CsoportnĂŠv";
 $_['text_groups'] = "Csoportok";
@@ -165,6 +170,7 @@ $_['text_invalid_email'] = "Érvénytelen email cím";
 $_['text_invalid_email_or_password'] = "Érvénytelen email cím vagy jelszó";
 $_['text_invalid_gid'] = "Érvénytelen csoportazonosító";
 $_['text_invalid_password'] = "Érvénytelen jelszó";
+$_['text_invalid_pin_code'] = "Érvénytelen pin kód";
 $_['text_invalid_policy_group'] = "Érvénytelen házirend szonosító";
 $_['text_invalid_policy_name'] = "Érvénytelen házirend név";
 $_['text_invalid_policy_setting'] = "Érvénytelen beállítás(ok)";
@@ -253,6 +259,7 @@ $_['text_purge_all_messages_from_quarantine'] = "Összes saját üzenet törlés
 $_['text_purge_selected_messages'] = "KivĂĄlasztott Ăźzenetek eltĂĄvolĂ­tĂĄsa";
 $_['text_purged'] = "EltĂĄvolĂ­tva";
 
+$_['text_qr_code'] = "QR";
 $_['text_queue_status'] = "Queue stĂĄtusz";
 $_['text_quick_search'] = "GyorskeresĂŠs";
 
@@ -260,6 +267,7 @@ $_['text_realname'] = "NĂŠv";
 $_['text_recipient'] = "CĂ­mzett";
 $_['text_ref'] = "HivatkozĂĄs";
 $_['text_refresh_period'] = "FrissĂ­tĂŠsi periĂłdus";
+$_['text_refresh_qr_code'] = "QR kĂłd frissĂ­tĂŠse";
 $_['text_relay_details'] = "Relay rĂŠszletek";
 $_['text_relay_status'] = "Relay stĂĄtusz";
 $_['text_remove'] = "TĂśrlĂŠs";
diff --git a/webui/language/pt/messages.php b/webui/language/pt/messages.php
index 732e260e..d1aa7f83 100644
--- a/webui/language/pt/messages.php
+++ b/webui/language/pt/messages.php
@@ -452,5 +452,12 @@ $_['text_with_selected'] = 'With Selected';
 
 $_['text_download_all_hits'] = "Download all";
 $_['text_archive_size_before_compression'] = "Archive size before compression";
+$_['text_create_new_secret'] = "Create new secret";
+$_['text_enter_google_authenticator_code'] = "Enter Google Authenticator code";
+$_['text_google_authenticator_code'] = "Google Authenticator code";
+$_['text_google_authenticator_settings'] = "Google Authenticator settings";
+$_['text_invalid_pin_code'] = "Invalid pin code";
+$_['text_qr_code'] = "QR";
+$_['text_refresh_qr_code'] = "Refresh QR code";
 
 ?>
diff --git a/webui/model/user/auth.php b/webui/model/user/auth.php
index 20aea2ac..2b1422a5 100644
--- a/webui/model/user/auth.php
+++ b/webui/model/user/auth.php
@@ -3,6 +3,7 @@
 class ModelUserAuth extends Model {
 
    public function checkLogin($username = '', $password = '') {
+      $session = Registry::get('session');
       $ok = 0;
 
       if($username == '' || $password == '') { return 0; }
@@ -47,17 +48,19 @@ class ModelUserAuth extends Model {
 
 
       if($ok == 1) {
-         $_SESSION['username'] = $query->row['username'];
-         $_SESSION['uid'] = $query->row['uid'];
-         $_SESSION['admin_user'] = $query->row['isadmin'];
-         $_SESSION['email'] = $username;
-         $_SESSION['domain'] = $query->row['domain'];
-         $_SESSION['realname'] = $query->row['realname'];
+         $session->set("username", $username);
+         $session->set("uid", $query->row['uid']);
+         $session->set("admin_user", $query->row['isadmin']);
+         $session->set("email", $username);
+         $session->set("domain", $query->row['domain']);
+         $session->set("realname", $query->row['realname']);
 
-         $_SESSION['auditdomains'] = $this->model_user_user->get_users_all_domains($query->row['uid']);
-         $_SESSION['emails'] = $this->model_user_user->get_users_all_email_addresses($query->row['uid']);
-         $_SESSION['folders'] = $this->model_folder_folder->get_all_folder_ids($query->row['uid']);
-         $_SESSION['extra_folders'] = $this->model_folder_folder->get_all_extra_folder_ids($query->row['uid']);
+         $session->set("auditdomains", $this->model_user_user->get_users_all_domains($query->row['uid']));
+         $session->set("emails", $this->model_user_user->get_users_all_email_addresses($query->row['uid']));
+         $session->set("folders", $this->model_folder_folder->get_all_folder_ids($query->row['uid']));
+         $session->set("extra_folders", $this->model_folder_folder->get_all_extra_folder_ids($query->row['uid']));
+
+         $this->is_ga_code_needed();
 
          return 1;
       }
@@ -190,6 +193,8 @@ class ModelUserAuth extends Model {
 
 
    private function add_session_vars($name = '', $email = '', $emails = array(), $role = 0) {
+      $session = Registry::get('session');
+
       $a = explode("@", $email);
 
       $uid = $this->model_user_user->get_uid_by_email($email);
@@ -198,23 +203,26 @@ class ModelUserAuth extends Model {
          $query = $this->db->query("INSERT INTO " . TABLE_EMAIL . " (uid, email) VALUES(?,?)", array($uid, $email));
       }
 
-      $_SESSION['username'] = $name;
-      $_SESSION['uid'] = $uid;
+
+      $session->set("username", $email);
+      $session->set("uid", $uid);
 
       if($role > 0) {
-         $_SESSION['admin_user'] = $role;
+         $session->set("admin_user", $role);
       } else {
-         $_SESSION['admin_user'] = 0;
+         $session->set("admin_user", 0);
       }
 
-      $_SESSION['email'] = $email;
-      $_SESSION['domain'] = $a[1];
-      $_SESSION['realname'] = $name;
+      $session->set("email", $email);
+      $session->set("domain", $a[1]);
+      $session->set("realname", $name);
 
-      $_SESSION['auditdomains'] = $this->model_domain_domain->get_your_all_domains_by_email($email);
-      $_SESSION['emails'] = $emails;
-      $_SESSION['folders'] = array();
-      $_SESSION['extra_folders'] = array();
+      $session->set("auditdomains", $this->model_domain_domain->get_your_all_domains_by_email($email));
+      $session->set("emails", $emails);
+      $session->set("folders", array());
+      $session->set("extra_folders", array());
+
+      $this->is_ga_code_needed();
    }
 
 
@@ -243,6 +251,8 @@ class ModelUserAuth extends Model {
 
 
    private function checkLoginAgainstIMAP($username = '', $password = '') {
+      $session = Registry::get('session');
+
       $user = array();
 
       $imap = new Zend_Mail_Protocol_Imap(IMAP_HOST, IMAP_PORT, IMAP_SSL);
@@ -251,7 +261,7 @@ class ModelUserAuth extends Model {
 
          $this->add_session_vars($username, $username, array($username), 0);
 
-         $_SESSION['password'] = $password;
+         $session->set("password", $password);
 
          return 1;
       }
@@ -357,6 +367,17 @@ class ModelUserAuth extends Model {
    }
 
 
+   private function is_ga_code_needed() {
+      $session = Registry::get('session');
+
+      $query = $this->db->query("SELECT ga_enabled FROM " . TABLE_USER_SETTINGS . " WHERE username=?", array($session->get("username")));
+
+      if(isset($query->row['ga_enabled']) && $query->row['ga_enabled'] == 1) {
+         $session->set("ga_block", 1);
+      }
+   }
+
+
    public function change_password($username = '', $password = '') {
       if($username == "" || $password == ""){ return 0; }
 
diff --git a/webui/model/user/prefs.php b/webui/model/user/prefs.php
index 41dbbd6b..f3c709d1 100644
--- a/webui/model/user/prefs.php
+++ b/webui/model/user/prefs.php
@@ -39,6 +39,53 @@ class ModelUserPrefs extends Model {
       return 1;
    }
 
+
+
+   public function get_ga_settings($username = '') {
+      $data = array('ga_enabled' => 0, 'ga_secret' => '');
+
+      if($username == ""){ return $data; }
+
+      $GA = new PHPGangsta_GoogleAuthenticator();
+
+      $query = $this->db->query("SELECT ga_enabled, ga_secret FROM " . TABLE_USER_SETTINGS . " WHERE username=?", array($username));
+
+      if(isset($query->row['ga_enabled'])) {
+         $data['ga_enabled'] = $query->row['ga_enabled'];
+         $data['ga_secret'] = $query->row['ga_secret'];
+
+         if($data['ga_secret'] == '') {
+            $data['ga_secret'] = $GA->createSecret();
+            $this->update_ga_secret($username, $data['ga_secret']);
+         }
+      }
+      else {
+         $query = $this->db->query("INSERT INTO " . TABLE_USER_SETTINGS . " (username, ga_enabled, ga_secret) VALUES(?,0,?)", array($username, $GA->createSecret()));
+      }
+
+
+      return $data;
+   }
+
+
+   public function update_ga_secret($username = '', $ga_secret = '') {
+      if($username == "" || $ga_secret == "") { return 0; }
+
+      $query = $this->db->query("UPDATE " . TABLE_USER_SETTINGS . " SET ga_secret=? WHERE username=?", array($ga_secret, $username));
+
+      return 1;
+   }
+
+
+   public function toggle_ga($username = '', $ga_enabled = '') {
+      if($username == "" || $ga_enabled < 0 || $ga_enabled > 1) { return 0; }
+
+      $query = $this->db->query("UPDATE " . TABLE_USER_SETTINGS . " SET ga_enabled=? WHERE username=?", array($ga_enabled, $username));
+
+      return 1;
+   }
+
+
 }
 
 ?>
diff --git a/webui/qr.php b/webui/qr.php
new file mode 100644
index 00000000..929012c8
--- /dev/null
+++ b/webui/qr.php
@@ -0,0 +1,43 @@
+<?php
+
+session_start();
+
+
+require_once("config.php");
+
+require(DIR_SYSTEM . "/startup.php");
+
+$session = new Session();
+$loader = new Loader();
+$language = new Language();
+
+$db = new DB(DB_DRIVER, DB_HOSTNAME, DB_USERNAME, DB_PASSWORD, DB_DATABASE, DB_PREFIX);
+Registry::set('db', $db);
+
+$loader->model('user/prefs');
+$loader->helper('phpqrcode/qrlib');
+$loader->helper('PHPGangsta_GoogleAuthenticator');
+
+$p = new ModelUserPrefs();
+
+if(isset($_GET['refresh'])) {
+   $GA = new PHPGangsta_GoogleAuthenticator();
+
+   $new_secret = $GA->createSecret();
+
+   $p->update_ga_secret($session->get('username'), $new_secret);
+
+   print "$new_secret <a href=\"#\" onclick=\"Piler.new_qr(); return false;\">" . $language->data['text_refresh_qr_code'] . "</a><br /><img src=\"qr.php?ts=" . microtime(true) . "\" />\n";
+
+   exit;
+}
+else if(isset($_GET['toggle'])) {
+   $p->toggle_ga($session->get('username'), $_GET['toggle']);
+}
+
+
+$ga = $p->get_ga_settings($session->get('username'));
+
+QRcode::png($ga['ga_secret'], false, "L", 8, 2);
+
+?>
diff --git a/webui/system/helper/PHPGangsta_GoogleAuthenticator.php b/webui/system/helper/PHPGangsta_GoogleAuthenticator.php
new file mode 100644
index 00000000..d8b54f9c
--- /dev/null
+++ b/webui/system/helper/PHPGangsta_GoogleAuthenticator.php
@@ -0,0 +1,203 @@
+<?php
+
+/**
+ * PHP Class for handling Google Authenticator 2-factor authentication
+ *
+ * @author Michael Kliewe
+ * @copyright 2012 Michael Kliewe
+ * @license http://www.opensource.org/licenses/bsd-license.php BSD License
+ * @link http://www.phpgangsta.de/
+ */
+
+class PHPGangsta_GoogleAuthenticator
+{
+    protected $_codeLength = 6;
+
+    /**
+     * Create new secret.
+     * 16 characters, randomly chosen from the allowed base32 characters.
+     *
+     * @param int $secretLength
+     * @return string
+     */
+    public function createSecret($secretLength = 16)
+    {
+        $validChars = $this->_getBase32LookupTable();
+        unset($validChars[32]);
+
+        $secret = '';
+        for ($i = 0; $i < $secretLength; $i++) {
+            $secret .= $validChars[array_rand($validChars)];
+        }
+        return $secret;
+    }
+
+    /**
+     * Calculate the code, with given secret and point in time
+     *
+     * @param string $secret
+     * @param int|null $timeSlice
+     * @return string
+     */
+    public function getCode($secret, $timeSlice = null)
+    {
+        if ($timeSlice === null) {
+            $timeSlice = floor(time() / 30);
+        }
+
+        $secretkey = $this->_base32Decode($secret);
+
+        // Pack time into binary string
+        $time = chr(0).chr(0).chr(0).chr(0).pack('N*', $timeSlice);
+        // Hash it with users secret key
+        $hm = hash_hmac('SHA1', $time, $secretkey, true);
+        // Use last nipple of result as index/offset
+        $offset = ord(substr($hm, -1)) & 0x0F;
+        // grab 4 bytes of the result
+        $hashpart = substr($hm, $offset, 4);
+
+        // Unpak binary value
+        $value = unpack('N', $hashpart);
+        $value = $value[1];
+        // Only 32 bits
+        $value = $value & 0x7FFFFFFF;
+
+        $modulo = pow(10, $this->_codeLength);
+        return str_pad($value % $modulo, $this->_codeLength, '0', STR_PAD_LEFT);
+    }
+
+    /**
+     * Get QR-Code URL for image, from google charts
+     *
+     * @param string $name
+     * @param string $secret
+     * @return string
+     */
+    public function getQRCodeGoogleUrl($name, $secret) {
+        $urlencoded = urlencode('otpauth://totp/'.$name.'?secret='.$secret.'');
+        return 'https://chart.googleapis.com/chart?chs=200x200&chld=M|0&cht=qr&chl='.$urlencoded.'';
+    }
+
+    /**
+     * Check if the code is correct. This will accept codes starting from $discrepancy*30sec ago to $discrepancy*30sec from now
+     *
+     * @param string $secret
+     * @param string $code
+     * @param int $discrepancy This is the allowed time drift in 30 second units (8 means 4 minutes before or after)
+     * @return bool
+     */
+    public function verifyCode($secret, $code, $discrepancy = 1)
+    {
+        $currentTimeSlice = floor(time() / 30);
+
+        for ($i = -$discrepancy; $i <= $discrepancy; $i++) {
+            $calculatedCode = $this->getCode($secret, $currentTimeSlice + $i);
+            if ($calculatedCode == $code ) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Set the code length, should be >=6
+     *
+     * @param int $length
+     * @return PHPGangsta_GoogleAuthenticator
+     */
+    public function setCodeLength($length)
+    {
+        $this->_codeLength = $length;
+        return $this;
+    }
+
+    /**
+     * Helper class to decode base32
+     *
+     * @param $secret
+     * @return bool|string
+     */
+    protected function _base32Decode($secret)
+    {
+        if (empty($secret)) return '';
+
+        $base32chars = $this->_getBase32LookupTable();
+        $base32charsFlipped = array_flip($base32chars);
+
+        $paddingCharCount = substr_count($secret, $base32chars[32]);
+        $allowedValues = array(6, 4, 3, 1, 0);
+        if (!in_array($paddingCharCount, $allowedValues)) return false;
+        for ($i = 0; $i < 4; $i++){
+            if ($paddingCharCount == $allowedValues[$i] &&
+                substr($secret, -($allowedValues[$i])) != str_repeat($base32chars[32], $allowedValues[$i])) return false;
+        }
+        $secret = str_replace('=','', $secret);
+        $secret = str_split($secret);
+        $binaryString = "";
+        for ($i = 0; $i < count($secret); $i = $i+8) {
+            $x = "";
+            if (!in_array($secret[$i], $base32chars)) return false;
+            for ($j = 0; $j < 8; $j++) {
+                $x .= str_pad(base_convert(@$base32charsFlipped[@$secret[$i + $j]], 10, 2), 5, '0', STR_PAD_LEFT);
+            }
+            $eightBits = str_split($x, 8);
+            for ($z = 0; $z < count($eightBits); $z++) {
+                $binaryString .= ( ($y = chr(base_convert($eightBits[$z], 2, 10))) || ord($y) == 48 ) ? $y:"";
+            }
+        }
+        return $binaryString;
+    }
+
+    /**
+     * Helper class to encode base32
+     *
+     * @param string $secret
+     * @param bool $padding
+     * @return string
+     */
+    protected function _base32Encode($secret, $padding = true)
+    {
+        if (empty($secret)) return '';
+
+        $base32chars = $this->_getBase32LookupTable();
+
+        $secret = str_split($secret);
+        $binaryString = "";
+        for ($i = 0; $i < count($secret); $i++) {
+            $binaryString .= str_pad(base_convert(ord($secret[$i]), 10, 2), 8, '0', STR_PAD_LEFT);
+        }
+        $fiveBitBinaryArray = str_split($binaryString, 5);
+        $base32 = "";
+        $i = 0;
+        while ($i < count($fiveBitBinaryArray)) {
+            $base32 .= $base32chars[base_convert(str_pad($fiveBitBinaryArray[$i], 5, '0'), 2, 10)];
+            $i++;
+        }
+        if ($padding && ($x = strlen($binaryString) % 40) != 0) {
+            if ($x == 8) $base32 .= str_repeat($base32chars[32], 6);
+            elseif ($x == 16) $base32 .= str_repeat($base32chars[32], 4);
+            elseif ($x == 24) $base32 .= str_repeat($base32chars[32], 3);
+            elseif ($x == 32) $base32 .= $base32chars[32];
+        }
+        return $base32;
+    }
+
+    /**
+     * Get array with all 32 characters for decoding from/encoding to base32
+     *
+     * @return array
+     */
+    protected function _getBase32LookupTable()
+    {
+        return array(
+            'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', //  7
+            'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', // 15
+            'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', // 23
+            'Y', 'Z', '2', '3', '4', '5', '6', '7', // 31
+            '='  // padding char
+        );
+    }
+}
+
+?>
diff --git a/webui/system/helper/phpqrcode/CHANGELOG b/webui/system/helper/phpqrcode/CHANGELOG
new file mode 100644
index 00000000..1088530c
--- /dev/null
+++ b/webui/system/helper/phpqrcode/CHANGELOG
@@ -0,0 +1,38 @@
+* 1.0.0 build 2010031920 
+
+  - first public release
+  - help in readme, install
+  - cleanup ans separation of QRtools and QRspec
+  - now TCPDF binding requires minimal changes in TCPDF, having most of job
+    done in QRtools tcpdfBarcodeArray
+  - nicer QRtools::timeBenchmark output
+  - license and copyright notices in files
+  - indent cleanup - from tab to 4spc, keep it that way please :)
+  - sf project, repository, wiki
+  - simple code generator in index.php
+  
+* 1.1.0 build 2010032113
+
+  - added merge tool wich generate merged version of code
+    located in phpqrcode.php
+  - splited qrconst.php from qrlib.php
+  
+* 1.1.1 build 2010032405
+
+  - patch by Rick Seymour allowing saving PNG and displaying it at the same time
+  - added version info in VERSION file
+  - modified merge tool to include version info into generated file
+  - fixed e-mail in almost all head comments
+  
+* 1.1.2 build 2010032722
+
+  - full integration with TCPDF thanks to Nicola Asuni, it's author
+  - fixed bug with alphanumeric encoding detection
+  
+* 1.1.3 build 2010081807
+
+  - short opening tags replaced with standard ones
+  
+* 1.1.4 build 2010100721
+
+  - added missing static keyword QRinput::check (found by Luke Brookhart, Onjax LLC)
diff --git a/webui/system/helper/phpqrcode/INSTALL b/webui/system/helper/phpqrcode/INSTALL
new file mode 100644
index 00000000..eac6b072
--- /dev/null
+++ b/webui/system/helper/phpqrcode/INSTALL
@@ -0,0 +1,67 @@
+== REQUIREMENTS ==
+
+ * PHP5
+ * PHP GD2 extension with JPEG and PNG support
+ 
+== INSTALLATION ==
+
+If you want to recreate cache by yourself make sure cache directory is
+writable and you have permisions to write into it. Also make sure you are
+able to read files in it if you have cache option enabled
+ 
+== CONFIGURATION ==
+
+Feel free to modify config constants in qrconfig.php file. Read about it in
+provided comments and project wiki page (links in README file)
+
+== QUICK START ==
+
+Notice: probably you should'nt use all of this in same script :)
+
+<?phpb
+
+//include only that one, rest required files will be included from it
+include "qrlib.php"
+
+//write code into file, Error corection lecer is lowest, L (one form: L,M,Q,H)
+//each code square will be 4x4 pixels (4x zoom)
+//code will have 2 code squares white boundary around 
+
+QRcode::png('PHP QR Code :)', 'test.png', 'L', 4, 2);
+
+//same as above but outputs file directly into browser (with appr. header etc.)
+//all other settings are default
+//WARNING! it should be FIRST and ONLY output generated by script, otherwise
+//rest of output will land inside PNG binary, breaking it for sure
+QRcode::png('PHP QR Code :)');
+
+//show benchmark
+QRtools::timeBenchmark();
+
+//rebuild cache
+QRtools::buildCache();
+
+//code generated in text mode - as a binary table
+//then displayed out as HTML using Unicode block building chars :)
+$tab = $qr->encode('PHP QR Code :)');
+QRspec::debug($tab, true);
+
+== TCPDF INTEGRATION ==
+
+Inside bindings/tcpdf you will find slightly modified 2dbarcodes.php.
+Instal phpqrcode liblaty inside tcpdf folder, then overwrite (or merge)
+2dbarcodes.php 
+
+Then use similar as example #50 from TCPDF examples:
+
+<?php
+
+$style = array(
+    'border' => true,
+    'padding' => 4,
+    'fgcolor' => array(0,0,0),
+    'bgcolor' => false, //array(255,255,255)
+);
+
+//code name: QR, specify error correction level after semicolon (L,M,Q,H)
+$pdf->write2DBarcode('PHP QR Code :)', 'QR,L', '', '', 30, 30, $style, 'N');
diff --git a/webui/system/helper/phpqrcode/LICENSE b/webui/system/helper/phpqrcode/LICENSE
new file mode 100644
index 00000000..18833032
--- /dev/null
+++ b/webui/system/helper/phpqrcode/LICENSE
@@ -0,0 +1,165 @@
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the Combined Work with a copy of the GNU GPL and this license
+   document.
+
+   c) For a Combined Work that displays copyright notices during
+   execution, include the copyright notice for the Library among
+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.
diff --git a/webui/system/helper/phpqrcode/README b/webui/system/helper/phpqrcode/README
new file mode 100644
index 00000000..a022fb5e
--- /dev/null
+++ b/webui/system/helper/phpqrcode/README
@@ -0,0 +1,45 @@
+This is PHP implementation of QR Code 2-D barcode generator. It is pure-php
+LGPL-licensed implementation based on C libqrencode by Kentaro Fukuchi.
+
+== LICENSING ==
+
+Copyright (C) 2010 by Dominik Dzienia 
+
+This library is free software; you can redistribute it and/or modify it under
+the terms of the GNU Lesser General Public License as published by the Free
+Software Foundation; either version 3 of the License, or any later version.
+
+This library is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+PARTICULAR PURPOSE. See the GNU Lesser General Public License (LICENSE file)
+for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this library; if not, write to the Free Software Foundation, Inc., 51
+Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+== INSTALATION AND USAGE ==
+
+ * INSTALL file
+ * http://sourceforge.net/apps/mediawiki/phpqrcode/index.php?title=Main_Page
+
+== CONTACT ==
+
+Fell free to contact me via e-mail (deltalab at poczta dot fm) or using
+folowing project pages:
+
+ * http://sourceforge.net/projects/phpqrcode/
+ * http://phpqrcode.sourceforge.net/
+  
+== ACKNOWLEDGMENTS ==
+
+Based on C libqrencode library (ver. 3.1.1) 
+Copyright (C) 2006-2010 by Kentaro Fukuchi
+http://megaui.net/fukuchi/works/qrencode/index.en.html
+
+QR Code is registered trademarks of DENSO WAVE INCORPORATED in JAPAN and other
+countries.
+
+Reed-Solomon code encoder is written by Phil Karn, KA9Q.
+Copyright (C) 2002, 2003, 2004, 2006 Phil Karn, KA9Q
+ 
\ No newline at end of file
diff --git a/webui/system/helper/phpqrcode/VERSION b/webui/system/helper/phpqrcode/VERSION
new file mode 100644
index 00000000..9f99279e
--- /dev/null
+++ b/webui/system/helper/phpqrcode/VERSION
@@ -0,0 +1,2 @@
+1.1.4
+2010100721
\ No newline at end of file
diff --git a/webui/system/helper/phpqrcode/bindings/tcpdf/qrcode.php b/webui/system/helper/phpqrcode/bindings/tcpdf/qrcode.php
new file mode 100644
index 00000000..7995460b
--- /dev/null
+++ b/webui/system/helper/phpqrcode/bindings/tcpdf/qrcode.php
@@ -0,0 +1,2875 @@
+<?php
+//============================================================+
+// File name   : qrcode.php
+// Begin       : 2010-03-22
+// Last Update : 2010-03-29
+// Version     : 1.0.002
+// License     : GNU LGPL v.3 (http://www.gnu.org/copyleft/lesser.html)
+// 	----------------------------------------------------------------------------
+//
+// 	This library is free software; you can redistribute it and/or
+// 	modify it under the terms of the GNU Lesser General Public
+// 	License as published by the Free Software Foundation; either
+// 	version 3 of the License, or any later version.
+//
+// 	This library is distributed in the hope that it will be useful,
+// 	but WITHOUT ANY WARRANTY; without even the implied warranty of
+// 	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// 	Lesser General Public License for more details.
+//
+// 	You should have received a copy of the GNU Lesser General Public
+// 	License along with this library; if not, write to the Free Software
+// 	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+//  or browse http://www.gnu.org/copyleft/lesser.html
+//
+//  ----------------------------------------------------------------------------
+//
+// DESCRIPTION :
+//
+// Class to create QR-code arrays for TCPDF class.
+// QR Code symbol is a 2D barcode that can be scanned by
+// handy terminals such as a mobile phone with CCD.
+// The capacity of QR Code is up to 7000 digits or 4000
+// characters, and has high robustness.
+// This class supports QR Code model 2, described in
+// JIS (Japanese Industrial Standards) X0510:2004
+// or ISO/IEC 18004.
+// Currently the following features are not supported:
+// ECI and FNC1 mode, Micro QR Code, QR Code model 1,
+// Structured mode.
+//
+// This class is derived from the following projects:
+// ---------------------------------------------------------
+// "PHP QR Code encoder"
+// License: GNU-LGPLv3
+// Copyright (C) 2010 by Dominik Dzienia <deltalab at poczta dot fm>
+// http://phpqrcode.sourceforge.net/
+// https://sourceforge.net/projects/phpqrcode/
+//
+// The "PHP QR Code encoder" is based on
+// "C libqrencode library" (ver. 3.1.1)
+// License: GNU-LGPL 2.1
+// Copyright (C) 2006-2010 by Kentaro Fukuchi
+// http://megaui.net/fukuchi/works/qrencode/index.en.html
+//
+// Reed-Solomon code encoder is written by Phil Karn, KA9Q.
+// Copyright (C) 2002-2006 Phil Karn, KA9Q
+//
+// QR Code is registered trademark of DENSO WAVE INCORPORATED
+// http://www.denso-wave.com/qrcode/index-e.html
+// ---------------------------------------------------------
+//
+// Author: Nicola Asuni
+//
+// (c) Copyright 2010:
+//               Nicola Asuni
+//               Tecnick.com S.r.l.
+//               Via della Pace, 11
+//               09044 Quartucciu (CA)
+//               ITALY
+//               www.tecnick.com
+//               info@tecnick.com
+//============================================================+
+
+/**
+ * Class to create QR-code arrays for TCPDF class.
+ * QR Code symbol is a 2D barcode that can be scanned by handy terminals such as a mobile phone with CCD.
+ * The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness.
+ * This class supports QR Code model 2, described in JIS (Japanese Industrial Standards) X0510:2004 or ISO/IEC 18004.
+ * Currently the following features are not supported: ECI and FNC1 mode, Micro QR Code, QR Code model 1, Structured mode.
+ *
+ * This class is derived from "PHP QR Code encoder" by Dominik Dzienia (http://phpqrcode.sourceforge.net/) based on "libqrencode C library 3.1.1." by Kentaro Fukuchi (http://megaui.net/fukuchi/works/qrencode/index.en.html), contains Reed-Solomon code written by Phil Karn, KA9Q. QR Code is registered trademark of DENSO WAVE INCORPORATED (http://www.denso-wave.com/qrcode/index-e.html).
+ * Please read comments on this class source file for full copyright and license information.
+ *
+ * @package com.tecnick.tcpdf
+ * @abstract Class for generating QR-code array for TCPDF.
+ * @author Nicola Asuni
+ * @copyright 2010 Nicola Asuni - Tecnick.com S.r.l (www.tecnick.com) Via Della Pace, 11 - 09044 - Quartucciu (CA) - ITALY - www.tecnick.com - info@tecnick.com
+ * @link http://www.tcpdf.org
+ * @license http://www.gnu.org/copyleft/lesser.html LGPL
+ * @version 1.0.002
+ */
+
+// definitions
+if (!defined('QRCODEDEFS')) {
+
+	/**
+	 * Indicate that definitions for this class are set
+	 */
+	define('QRCODEDEFS', true);
+
+	// -----------------------------------------------------
+
+	// Encoding modes (characters which can be encoded in QRcode)
+
+	/**
+	 * Encoding mode
+	 */
+	define('QR_MODE_NL', -1);
+
+	/**
+	 * Encoding mode numeric (0-9). 3 characters are encoded to 10bit length. In theory, 7089 characters or less can be stored in a QRcode.
+	 */
+	define('QR_MODE_NM', 0);
+
+	/**
+	 * Encoding mode alphanumeric (0-9A-Z $%*+-./:) 45characters. 2 characters are encoded to 11bit length. In theory, 4296 characters or less can be stored in a QRcode.
+	 */
+	define('QR_MODE_AN', 1);
+
+	/**
+	 * Encoding mode 8bit byte data. In theory, 2953 characters or less can be stored in a QRcode.
+	 */
+	define('QR_MODE_8B', 2);
+
+	/**
+	 * Encoding mode KANJI. A KANJI character (multibyte character) is encoded to 13bit length. In theory, 1817 characters or less can be stored in a QRcode.
+	 */
+	define('QR_MODE_KJ', 3);
+
+	/**
+	 * Encoding mode STRUCTURED (currently unsupported)
+	 */
+	define('QR_MODE_ST', 4);
+
+	// -----------------------------------------------------
+
+	// Levels of error correction.
+	// QRcode has a function of an error correcting for miss reading that white is black.
+	// Error correcting is defined in 4 level as below.
+
+	/**
+	 * Error correction level L : About 7% or less errors can be corrected.
+	 */
+	define('QR_ECLEVEL_L', 0);
+
+	/**
+	 * Error correction level M : About 15% or less errors can be corrected.
+	 */
+	define('QR_ECLEVEL_M', 1);
+
+	/**
+	 * Error correction level Q : About 25% or less errors can be corrected.
+	 */
+	define('QR_ECLEVEL_Q', 2);
+
+	/**
+	 * Error correction level H : About 30% or less errors can be corrected.
+	 */
+	define('QR_ECLEVEL_H', 3);
+
+	// -----------------------------------------------------
+
+	// Version. Size of QRcode is defined as version.
+	// Version is from 1 to 40.
+	// Version 1 is 21*21 matrix. And 4 modules increases whenever 1 version increases.
+	// So version 40 is 177*177 matrix.
+
+	/**
+	 * Maximum QR Code version.
+	 */
+	define('QRSPEC_VERSION_MAX', 40);
+
+	/**
+	 * Maximum matrix size for maximum version (version 40 is 177*177 matrix).
+	 */
+    define('QRSPEC_WIDTH_MAX', 177);
+
+	// -----------------------------------------------------
+
+	/**
+	 * Matrix index to get width from $capacity array.
+	 */
+    define('QRCAP_WIDTH',    0);
+
+    /**
+	 * Matrix index to get number of words from $capacity array.
+	 */
+    define('QRCAP_WORDS',    1);
+
+    /**
+	 * Matrix index to get remainder from $capacity array.
+	 */
+    define('QRCAP_REMINDER', 2);
+
+    /**
+	 * Matrix index to get error correction level from $capacity array.
+	 */
+    define('QRCAP_EC',       3);
+
+	// -----------------------------------------------------
+
+	// Structure (currently usupported)
+
+	/**
+	 * Number of header bits for structured mode
+	 */
+    define('STRUCTURE_HEADER_BITS',  20);
+
+    /**
+	 * Max number of symbols for structured mode
+	 */
+    define('MAX_STRUCTURED_SYMBOLS', 16);
+
+	// -----------------------------------------------------
+
+    // Masks
+
+    /**
+	 * Down point base value for case 1 mask pattern (concatenation of same color in a line or a column)
+	 */
+    define('N1',  3);
+
+    /**
+	 * Down point base value for case 2 mask pattern (module block of same color)
+	 */
+	define('N2',  3);
+
+    /**
+	 * Down point base value for case 3 mask pattern (1:1:3:1:1(dark:bright:dark:bright:dark)pattern in a line or a column)
+	 */
+	define('N3', 40);
+
+    /**
+	 * Down point base value for case 4 mask pattern (ration of dark modules in whole)
+	 */
+	define('N4', 10);
+
+	// -----------------------------------------------------
+
+	// Optimization settings
+
+	/**
+	 * if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
+	 */
+	define('QR_FIND_BEST_MASK', true);
+
+	/**
+	 * if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
+	 */
+	define('QR_FIND_FROM_RANDOM', 2);
+
+	/**
+	 * when QR_FIND_BEST_MASK === false
+	 */
+	define('QR_DEFAULT_MASK', 2);
+
+	// -----------------------------------------------------
+
+} // end of definitions
+
+// #*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#
+
+if (!class_exists('QRcode', false)) {
+
+	// for compaibility with PHP4
+	if (!function_exists('str_split')) {
+    	/**
+    	 * Convert a string to an array (needed for PHP4 compatibility)
+    	 * @param string $string The input string.
+    	 * @param int $split_length Maximum length of the chunk.
+    	 * @return  If the optional split_length  parameter is specified, the returned array will be broken down into chunks with each being split_length  in length, otherwise each chunk will be one character in length. FALSE is returned if split_length is less than 1. If the split_length length exceeds the length of string , the entire string is returned as the first (and only) array element.
+    	 */
+		function str_split($string, $split_length=1) {
+			if ((strlen($string) > $split_length) OR (!$split_length)) {
+				do {
+					$c = strlen($string);
+					$parts[] = substr($string, 0, $split_length);
+					$string = substr($string, $split_length);
+				} while ($string !== false);
+			} else {
+				$parts = array($string);
+			}
+			return $parts;
+		}
+	}
+
+	// #####################################################
+
+	/**
+	 * Class to create QR-code arrays for TCPDF class.
+	 * QR Code symbol is a 2D barcode that can be scanned by handy terminals such as a mobile phone with CCD.
+	 * The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness.
+	 * This class supports QR Code model 2, described in JIS (Japanese Industrial Standards) X0510:2004 or ISO/IEC 18004.
+	 * Currently the following features are not supported: ECI and FNC1 mode, Micro QR Code, QR Code model 1, Structured mode.
+	 *
+	 * This class is derived from "PHP QR Code encoder" by Dominik Dzienia (http://phpqrcode.sourceforge.net/) based on "libqrencode C library 3.1.1." by Kentaro Fukuchi (http://megaui.net/fukuchi/works/qrencode/index.en.html), contains Reed-Solomon code written by Phil Karn, KA9Q. QR Code is registered trademark of DENSO WAVE INCORPORATED (http://www.denso-wave.com/qrcode/index-e.html).
+	 * Please read comments on this class source file for full copyright and license information.
+	 *
+	 * @name QRcode
+	 * @package com.tecnick.tcpdf
+	 * @abstract Class for generating QR-code array for TCPDF.
+	 * @author Nicola Asuni
+	 * @copyright 2010 Nicola Asuni - Tecnick.com S.r.l (www.tecnick.com) Via Della Pace, 11 - 09044 - Quartucciu (CA) - ITALY - www.tecnick.com - info@tecnick.com
+	 * @link http://www.tcpdf.org
+	 * @license http://www.gnu.org/copyleft/lesser.html LGPL
+	 * @version 1.0.002
+	 */
+	class QRcode {
+
+		/**
+		 * @var barcode array to be returned which is readable by TCPDF
+		 * @access protected
+		 */
+		protected $barcode_array = array();
+
+		/**
+		 * @var QR code version. Size of QRcode is defined as version. Version is from 1 to 40. Version 1 is 21*21 matrix. And 4 modules increases whenever 1 version increases. So version 40 is 177*177 matrix.
+		 * @access protected
+		 */
+		protected $version = 0;
+
+		/**
+		 * @var Levels of error correction. See definitions for possible values.
+		 * @access protected
+		 */
+		protected $level = QR_ECLEVEL_L;
+
+		/**
+		 * @var Encoding mode
+		 * @access protected
+		 */
+		protected $hint = QR_MODE_8B;
+
+		/**
+		 * @var if true the input string will be converted to uppercase
+		 * @access protected
+		 */
+		protected $casesensitive = true;
+
+		/**
+		 * @var structured QR code (not supported yet)
+		 * @access protected
+		 */
+		protected $structured = 0;
+
+		/**
+		 * @var mask data
+		 * @access protected
+		 */
+		protected $data;
+
+		// FrameFiller
+
+		/**
+		 * @var width
+		 * @access protected
+		 */
+		protected $width;
+
+		/**
+		 * @var frame
+		 * @access protected
+		 */
+		protected $frame;
+
+		/**
+		 * @var X position of bit
+		 * @access protected
+		 */
+		protected $x;
+
+		/**
+		 * @var Y position of bit
+		 * @access protected
+		 */
+		protected $y;
+
+		/**
+		 * @var direction
+		 * @access protected
+		 */
+		protected $dir;
+
+		/**
+		 * @var single bit
+		 * @access protected
+		 */
+		protected $bit;
+
+		// ---- QRrawcode ----
+
+		/**
+		 * @var data code
+		 * @access protected
+		 */
+		protected $datacode = array();
+
+		/**
+		 * @var error correction code
+		 * @access protected
+		 */
+		protected $ecccode = array();
+
+		/**
+		 * @var blocks
+		 * @access protected
+		 */
+		protected $blocks;
+
+		/**
+		 * @var Reed-Solomon blocks
+		 * @access protected
+		 */
+		protected $rsblocks = array(); //of RSblock
+
+		/**
+		 * @var counter
+		 * @access protected
+		 */
+		protected $count;
+
+		/**
+		 * @var data length
+		 * @access protected
+		 */
+		protected $dataLength;
+
+		/**
+		 * @var error correction length
+		 * @access protected
+		 */
+		protected $eccLength;
+
+		/**
+		 * @var b1
+		 * @access protected
+		 */
+		protected $b1;
+
+		// ---- QRmask ----
+
+		/**
+		 * @var run length
+		 * @access protected
+		 */
+		protected $runLength = array();
+
+		// ---- QRsplit ----
+
+		/**
+		 * @var input data string
+		 * @access protected
+		 */
+		protected $dataStr = '';
+
+		/**
+		 * @var input items
+		 * @access protected
+		 */
+		protected $items;
+
+		// Reed-Solomon items
+
+		/**
+		 * @var Reed-Solomon items
+		 * @access protected
+		 */
+		protected $rsitems = array();
+
+		/**
+		 * @var array of frames
+		 * @access protected
+		 */
+		protected $frames = array();
+
+		/**
+		 * @var alphabet-numeric convesion table
+		 * @access protected
+		 */
+		protected $anTable = array(
+			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
+			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
+			36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43, //
+			 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 44, -1, -1, -1, -1, -1, //
+			-1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, //
+			25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, //
+			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
+			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1  //
+			);
+
+		/**
+		 * @var array Table of the capacity of symbols
+		 * See Table 1 (pp.13) and Table 12-16 (pp.30-36), JIS X0510:2004.
+		 * @access protected
+		 */
+		protected $capacity = array(
+			array(  0,    0, 0, array(   0,    0,    0,    0)), //
+			array( 21,   26, 0, array(   7,   10,   13,   17)), //  1
+			array( 25,   44, 7, array(  10,   16,   22,   28)), //
+			array( 29,   70, 7, array(  15,   26,   36,   44)), //
+			array( 33,  100, 7, array(  20,   36,   52,   64)), //
+			array( 37,  134, 7, array(  26,   48,   72,   88)), //  5
+			array( 41,  172, 7, array(  36,   64,   96,  112)), //
+			array( 45,  196, 0, array(  40,   72,  108,  130)), //
+			array( 49,  242, 0, array(  48,   88,  132,  156)), //
+			array( 53,  292, 0, array(  60,  110,  160,  192)), //
+			array( 57,  346, 0, array(  72,  130,  192,  224)), // 10
+			array( 61,  404, 0, array(  80,  150,  224,  264)), //
+			array( 65,  466, 0, array(  96,  176,  260,  308)), //
+			array( 69,  532, 0, array( 104,  198,  288,  352)), //
+			array( 73,  581, 3, array( 120,  216,  320,  384)), //
+			array( 77,  655, 3, array( 132,  240,  360,  432)), // 15
+			array( 81,  733, 3, array( 144,  280,  408,  480)), //
+			array( 85,  815, 3, array( 168,  308,  448,  532)), //
+			array( 89,  901, 3, array( 180,  338,  504,  588)), //
+			array( 93,  991, 3, array( 196,  364,  546,  650)), //
+			array( 97, 1085, 3, array( 224,  416,  600,  700)), // 20
+			array(101, 1156, 4, array( 224,  442,  644,  750)), //
+			array(105, 1258, 4, array( 252,  476,  690,  816)), //
+			array(109, 1364, 4, array( 270,  504,  750,  900)), //
+			array(113, 1474, 4, array( 300,  560,  810,  960)), //
+			array(117, 1588, 4, array( 312,  588,  870, 1050)), // 25
+			array(121, 1706, 4, array( 336,  644,  952, 1110)), //
+			array(125, 1828, 4, array( 360,  700, 1020, 1200)), //
+			array(129, 1921, 3, array( 390,  728, 1050, 1260)), //
+			array(133, 2051, 3, array( 420,  784, 1140, 1350)), //
+			array(137, 2185, 3, array( 450,  812, 1200, 1440)), // 30
+			array(141, 2323, 3, array( 480,  868, 1290, 1530)), //
+			array(145, 2465, 3, array( 510,  924, 1350, 1620)), //
+			array(149, 2611, 3, array( 540,  980, 1440, 1710)), //
+			array(153, 2761, 3, array( 570, 1036, 1530, 1800)), //
+			array(157, 2876, 0, array( 570, 1064, 1590, 1890)), // 35
+			array(161, 3034, 0, array( 600, 1120, 1680, 1980)), //
+			array(165, 3196, 0, array( 630, 1204, 1770, 2100)), //
+			array(169, 3362, 0, array( 660, 1260, 1860, 2220)), //
+			array(173, 3532, 0, array( 720, 1316, 1950, 2310)), //
+			array(177, 3706, 0, array( 750, 1372, 2040, 2430))  // 40
+		);
+
+		/**
+		 * @var array Length indicator
+		 * @access protected
+		 */
+		protected $lengthTableBits = array(
+			array(10, 12, 14),
+			array( 9, 11, 13),
+			array( 8, 16, 16),
+			array( 8, 10, 12)
+		);
+
+		/**
+		 * @var array Table of the error correction code (Reed-Solomon block)
+		 * See Table 12-16 (pp.30-36), JIS X0510:2004.
+		 * @access protected
+		 */
+		protected $eccTable = array(
+			array(array( 0,  0), array( 0,  0), array( 0,  0), array( 0,  0)), //
+			array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)), //  1
+			array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)), //
+			array(array( 1,  0), array( 1,  0), array( 2,  0), array( 2,  0)), //
+			array(array( 1,  0), array( 2,  0), array( 2,  0), array( 4,  0)), //
+			array(array( 1,  0), array( 2,  0), array( 2,  2), array( 2,  2)), //  5
+			array(array( 2,  0), array( 4,  0), array( 4,  0), array( 4,  0)), //
+			array(array( 2,  0), array( 4,  0), array( 2,  4), array( 4,  1)), //
+			array(array( 2,  0), array( 2,  2), array( 4,  2), array( 4,  2)), //
+			array(array( 2,  0), array( 3,  2), array( 4,  4), array( 4,  4)), //
+			array(array( 2,  2), array( 4,  1), array( 6,  2), array( 6,  2)), // 10
+			array(array( 4,  0), array( 1,  4), array( 4,  4), array( 3,  8)), //
+			array(array( 2,  2), array( 6,  2), array( 4,  6), array( 7,  4)), //
+			array(array( 4,  0), array( 8,  1), array( 8,  4), array(12,  4)), //
+			array(array( 3,  1), array( 4,  5), array(11,  5), array(11,  5)), //
+			array(array( 5,  1), array( 5,  5), array( 5,  7), array(11,  7)), // 15
+			array(array( 5,  1), array( 7,  3), array(15,  2), array( 3, 13)), //
+			array(array( 1,  5), array(10,  1), array( 1, 15), array( 2, 17)), //
+			array(array( 5,  1), array( 9,  4), array(17,  1), array( 2, 19)), //
+			array(array( 3,  4), array( 3, 11), array(17,  4), array( 9, 16)), //
+			array(array( 3,  5), array( 3, 13), array(15,  5), array(15, 10)), // 20
+			array(array( 4,  4), array(17,  0), array(17,  6), array(19,  6)), //
+			array(array( 2,  7), array(17,  0), array( 7, 16), array(34,  0)), //
+			array(array( 4,  5), array( 4, 14), array(11, 14), array(16, 14)), //
+			array(array( 6,  4), array( 6, 14), array(11, 16), array(30,  2)), //
+			array(array( 8,  4), array( 8, 13), array( 7, 22), array(22, 13)), // 25
+			array(array(10,  2), array(19,  4), array(28,  6), array(33,  4)), //
+			array(array( 8,  4), array(22,  3), array( 8, 26), array(12, 28)), //
+			array(array( 3, 10), array( 3, 23), array( 4, 31), array(11, 31)), //
+			array(array( 7,  7), array(21,  7), array( 1, 37), array(19, 26)), //
+			array(array( 5, 10), array(19, 10), array(15, 25), array(23, 25)), // 30
+			array(array(13,  3), array( 2, 29), array(42,  1), array(23, 28)), //
+			array(array(17,  0), array(10, 23), array(10, 35), array(19, 35)), //
+			array(array(17,  1), array(14, 21), array(29, 19), array(11, 46)), //
+			array(array(13,  6), array(14, 23), array(44,  7), array(59,  1)), //
+			array(array(12,  7), array(12, 26), array(39, 14), array(22, 41)), // 35
+			array(array( 6, 14), array( 6, 34), array(46, 10), array( 2, 64)), //
+			array(array(17,  4), array(29, 14), array(49, 10), array(24, 46)), //
+			array(array( 4, 18), array(13, 32), array(48, 14), array(42, 32)), //
+			array(array(20,  4), array(40,  7), array(43, 22), array(10, 67)), //
+			array(array(19,  6), array(18, 31), array(34, 34), array(20, 61))  // 40
+		);
+
+		/**
+		 * @var array Positions of alignment patterns.
+		 * This array includes only the second and the third position of the alignment patterns. Rest of them can be calculated from the distance between them.
+		 * See Table 1 in Appendix E (pp.71) of JIS X0510:2004.
+		 * @access protected
+		 */
+		protected $alignmentPattern = array(
+			array( 0,  0),
+			array( 0,  0), array(18,  0), array(22,  0), array(26,  0), array(30,  0), //  1- 5
+			array(34,  0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), //  6-10
+			array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), // 11-15
+			array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), // 16-20
+			array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), // 21-25
+			array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), // 26-30
+			array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), // 31-35
+			array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58)  // 35-40
+		);
+
+		/**
+		 * @var array Version information pattern (BCH coded).
+		 * See Table 1 in Appendix D (pp.68) of JIS X0510:2004.
+		 * size: [QRSPEC_VERSION_MAX - 6]
+		 * @access protected
+		 */
+		protected $versionPattern = array(
+			0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d, //
+			0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9, //
+			0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75, //
+			0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64, //
+			0x27541, 0x28c69
+		);
+
+		/**
+		 * @var array Format information
+		 * @access protected
+		 */
+		protected $formatInfo = array(
+			array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976), //
+			array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0), //
+			array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed), //
+			array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b)  //
+		);
+
+
+		// -------------------------------------------------
+		// -------------------------------------------------
+
+
+		/**
+		 * This is the class constructor.
+		 * Creates a QRcode object
+		 * @param string $code code to represent using QRcode
+		 * @param string $eclevel error level: <ul><li>L : About 7% or less errors can be corrected.</li><li>M : About 15% or less errors can be corrected.</li><li>Q : About 25% or less errors can be corrected.</li><li>H : About 30% or less errors can be corrected.</li></ul>
+		 * @access public
+		 * @since 1.0.000
+		 */
+		public function __construct($code, $eclevel = 'L') {
+			$barcode_array = array();
+			if ((is_null($code)) OR ($code == '\0') OR ($code == '')) {
+				return false;
+			}
+			// set error correction level
+			$this->level = array_search($eclevel, array('L', 'M', 'Q', 'H'));
+			if ($this->level === false) {
+				$this->level = QR_ECLEVEL_L;
+			}
+			if (($this->hint != QR_MODE_8B) AND ($this->hint != QR_MODE_KJ)) {
+				return false;
+			}
+			if (($this->version < 0) OR ($this->version > QRSPEC_VERSION_MAX)) {
+				return false;
+			}
+			$this->items = array();
+			$this->encodeString($code);
+			$qrTab = $this->binarize($this->data);
+			$size = count($qrTab);
+			$barcode_array['num_rows'] = $size;
+			$barcode_array['num_cols'] = $size;
+			$barcode_array['bcode'] = array();
+			foreach ($qrTab as $line) {
+				$arrAdd = array();
+				foreach (str_split($line) as $char) {
+					$arrAdd[] = ($char=='1')?1:0;
+				}
+				$barcode_array['bcode'][] = $arrAdd;
+			}
+			$this->barcode_array = $barcode_array;
+		}
+
+		/**
+		 * Returns a barcode array which is readable by TCPDF
+		 * @return array barcode array readable by TCPDF;
+		 * @access public
+		 */
+		public function getBarcodeArray() {
+			return $this->barcode_array;
+		}
+
+		/**
+		 * Convert the frame in binary form
+		 * @param array $frame array to binarize
+		 * @return array frame in binary form
+		 */
+		protected function binarize($frame) {
+			$len = count($frame);
+			// the frame is square (width = height)
+			foreach ($frame as &$frameLine) {
+				for ($i=0; $i<$len; $i++) {
+					$frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
+				}
+			}
+			return $frame;
+		}
+
+		/**
+		 * Encode the input string to QR code
+		 * @param string $string input string to encode
+		 */
+		protected function encodeString($string) {
+			$this->dataStr = $string;
+			if (!$this->casesensitive) {
+				$this->toUpper();
+			}
+			$ret = $this->splitString();
+			if ($ret < 0) {
+				return NULL;
+			}
+			$this->encodeMask(-1);
+		}
+
+		/**
+		 * Encode mask
+		 * @param int $mask masking mode
+		 */
+		protected function encodeMask($mask) {
+			$spec = array(0, 0, 0, 0, 0);
+			$this->datacode = $this->getByteStream($this->items);
+			if (is_null($this->datacode)) {
+				return NULL;
+			}
+			$spec = $this->getEccSpec($this->version, $this->level, $spec);
+			$this->b1 = $this->rsBlockNum1($spec);
+			$this->dataLength = $this->rsDataLength($spec);
+			$this->eccLength = $this->rsEccLength($spec);
+			$this->ecccode = array_fill(0, $this->eccLength, 0);
+			$this->blocks = $this->rsBlockNum($spec);
+			$ret = $this->init($spec);
+			if ($ret < 0) {
+				return NULL;
+			}
+			$this->count = 0;
+			$this->width = $this->getWidth($this->version);
+			$this->frame = $this->newFrame($this->version);
+			$this->x = $this->width - 1;
+			$this->y = $this->width - 1;
+			$this->dir = -1;
+			$this->bit = -1;
+			// inteleaved data and ecc codes
+			for ($i=0; $i < ($this->dataLength + $this->eccLength); $i++) {
+				$code = $this->getCode();
+				$bit = 0x80;
+				for ($j=0; $j<8; $j++) {
+					$addr = $this->getNextPosition();
+					$this->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
+					$bit = $bit >> 1;
+				}
+			}
+			// remainder bits
+			$j = $this->getRemainder($this->version);
+			for ($i=0; $i<$j; $i++) {
+				$addr = $this->getNextPosition();
+				$this->setFrameAt($addr, 0x02);
+			}
+			// masking
+			$this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
+			if ($mask < 0) {
+				if (QR_FIND_BEST_MASK) {
+					$masked = $this->mask($this->width, $this->frame, $this->level);
+				} else {
+					$masked = $this->makeMask($this->width, $this->frame, (intval(QR_DEFAULT_MASK) % 8), $this->level);
+				}
+			} else {
+				$masked = $this->makeMask($this->width, $this->frame, $mask, $this->level);
+			}
+			if ($masked == NULL) {
+				return NULL;
+			}
+			$this->data = $masked;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// FrameFiller
+
+		/**
+		 * Set frame value at specified position
+		 * @param array $at x,y position
+		 * @param int $val value of the character to set
+		 */
+		protected function setFrameAt($at, $val) {
+			$this->frame[$at['y']][$at['x']] = chr($val);
+		}
+
+		/**
+		 * Get frame value at specified position
+		 * @param array $at x,y position
+		 * @return value at specified position
+		 */
+		protected function getFrameAt($at) {
+			return ord($this->frame[$at['y']][$at['x']]);
+		}
+
+		/**
+		 * Return the next frame position
+		 * @return array of x,y coordinates
+		 */
+		protected function getNextPosition() {
+			do {
+				if ($this->bit == -1) {
+					$this->bit = 0;
+					return array('x'=>$this->x, 'y'=>$this->y);
+				}
+				$x = $this->x;
+				$y = $this->y;
+				$w = $this->width;
+				if ($this->bit == 0) {
+					$x--;
+					$this->bit++;
+				} else {
+					$x++;
+					$y += $this->dir;
+					$this->bit--;
+				}
+				if ($this->dir < 0) {
+					if ($y < 0) {
+						$y = 0;
+						$x -= 2;
+						$this->dir = 1;
+						if ($x == 6) {
+							$x--;
+							$y = 9;
+						}
+					}
+				} else {
+					if ($y == $w) {
+						$y = $w - 1;
+						$x -= 2;
+						$this->dir = -1;
+						if ($x == 6) {
+							$x--;
+							$y -= 8;
+						}
+					}
+				}
+				if (($x < 0) OR ($y < 0)) {
+					return NULL;
+				}
+				$this->x = $x;
+				$this->y = $y;
+			} while(ord($this->frame[$y][$x]) & 0x80);
+			return array('x'=>$x, 'y'=>$y);
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRrawcode
+
+		/**
+		 * Initialize code.
+		 * @param array $spec array of ECC specification
+		 * @return 0 in case of success, -1 in case of error
+		 */
+		protected function init($spec) {
+			$dl = $this->rsDataCodes1($spec);
+			$el = $this->rsEccCodes1($spec);
+			$rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+			$blockNo = 0;
+			$dataPos = 0;
+			$eccPos = 0;
+			$endfor = $this->rsBlockNum1($spec);
+			for ($i=0; $i < $endfor; ++$i) {
+				$ecc = array_slice($this->ecccode, $eccPos);
+				$this->rsblocks[$blockNo] = array();
+				$this->rsblocks[$blockNo]['dataLength'] = $dl;
+				$this->rsblocks[$blockNo]['data'] = array_slice($this->datacode, $dataPos);
+				$this->rsblocks[$blockNo]['eccLength'] = $el;
+				$ecc = $this->encode_rs_char($rs, $this->rsblocks[$blockNo]['data'], $ecc);
+				$this->rsblocks[$blockNo]['ecc'] = $ecc;
+				$this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
+				$dataPos += $dl;
+				$eccPos += $el;
+				$blockNo++;
+			}
+			if ($this->rsBlockNum2($spec) == 0) {
+				return 0;
+			}
+			$dl = $this->rsDataCodes2($spec);
+			$el = $this->rsEccCodes2($spec);
+			$rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+			if ($rs == NULL) {
+				return -1;
+			}
+			$endfor = $this->rsBlockNum2($spec);
+			for ($i=0; $i < $endfor; ++$i) {
+				$ecc = array_slice($this->ecccode, $eccPos);
+				$this->rsblocks[$blockNo] = array();
+				$this->rsblocks[$blockNo]['dataLength'] = $dl;
+				$this->rsblocks[$blockNo]['data'] = array_slice($this->datacode, $dataPos);
+				$this->rsblocks[$blockNo]['eccLength'] = $el;
+				$ecc = $this->encode_rs_char($rs, $this->rsblocks[$blockNo]['data'], $ecc);
+				$this->rsblocks[$blockNo]['ecc'] = $ecc;
+				$this->ecccode = array_merge(array_slice($this->ecccode, 0, $eccPos), $ecc);
+				$dataPos += $dl;
+				$eccPos += $el;
+				$blockNo++;
+			}
+			return 0;
+		}
+
+		/**
+		 * Return Reed-Solomon block code.
+		 * @return array rsblocks
+		 */
+		protected function getCode() {
+			if ($this->count < $this->dataLength) {
+				$row = $this->count % $this->blocks;
+				$col = $this->count / $this->blocks;
+				if ($col >= $this->rsblocks[0]['dataLength']) {
+					$row += $this->b1;
+				}
+				$ret = $this->rsblocks[$row]['data'][$col];
+			} elseif ($this->count < $this->dataLength + $this->eccLength) {
+				$row = ($this->count - $this->dataLength) % $this->blocks;
+				$col = ($this->count - $this->dataLength) / $this->blocks;
+				$ret = $this->rsblocks[$row]['ecc'][$col];
+			} else {
+				return 0;
+			}
+			$this->count++;
+			return $ret;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRmask
+
+		/**
+		 * Write Format Information on frame and returns the number of black bits
+		 * @param int $width frame width
+		 * @param array $frame frame
+		 * @param array $mask masking mode
+		 * @param int $level error correction level
+		 * @return int blacks
+		 */
+		 protected function writeFormatInformation($width, &$frame, $mask, $level) {
+			$blacks = 0;
+			$format =  $this->getFormatInfo($mask, $level);
+			for ($i=0; $i<8; ++$i) {
+				if ($format & 1) {
+					$blacks += 2;
+					$v = 0x85;
+				} else {
+					$v = 0x84;
+				}
+				$frame[8][$width - 1 - $i] = chr($v);
+				if ($i < 6) {
+					$frame[$i][8] = chr($v);
+				} else {
+					$frame[$i + 1][8] = chr($v);
+				}
+				$format = $format >> 1;
+			}
+			for ($i=0; $i<7; ++$i) {
+			if ($format & 1) {
+				$blacks += 2;
+				$v = 0x85;
+			} else {
+				$v = 0x84;
+			}
+			$frame[$width - 7 + $i][8] = chr($v);
+			if ($i == 0) {
+				$frame[8][7] = chr($v);
+			} else {
+				$frame[8][6 - $i] = chr($v);
+			}
+			$format = $format >> 1;
+			}
+			return $blacks;
+		}
+
+		/**
+		 * mask0
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask0($x, $y) {
+			return ($x + $y) & 1;
+		}
+
+		/**
+		 * mask1
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask1($x, $y) {
+			return ($y & 1);
+		}
+
+		/**
+		 * mask2
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask2($x, $y) {
+			return ($x % 3);
+		}
+
+		/**
+		 * mask3
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask3($x, $y) {
+			return ($x + $y) % 3;
+		}
+
+		/**
+		 * mask4
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask4($x, $y) {
+			return (((int)($y / 2)) + ((int)($x / 3))) & 1;
+		}
+
+		/**
+		 * mask5
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask5($x, $y) {
+			return (($x * $y) & 1) + ($x * $y) % 3;
+		}
+
+		/**
+		 * mask6
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask6($x, $y) {
+			return ((($x * $y) & 1) + ($x * $y) % 3) & 1;
+		}
+
+		/**
+		 * mask7
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask7($x, $y) {
+			return ((($x * $y) % 3) + (($x + $y) & 1)) & 1;
+		}
+
+		/**
+		 * Return bitmask
+		 * @param int $maskNo mask number
+		 * @param int $width width
+		 * @param array $frame frame
+		 * @return array bitmask
+		 */
+		protected function generateMaskNo($maskNo, $width, $frame) {
+			$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+			for ($y=0; $y<$width; ++$y) {
+				for ($x=0; $x<$width; ++$x) {
+					if (ord($frame[$y][$x]) & 0x80) {
+						$bitMask[$y][$x] = 0;
+					} else {
+						$maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
+						$bitMask[$y][$x] = ($maskFunc == 0)?1:0;
+					}
+				}
+			}
+			return $bitMask;
+		}
+
+		/**
+		 * makeMaskNo
+		 * @param int $maskNo
+		 * @param int $width
+		 * @param int $s
+		 * @param int $d
+		 * @param boolean $maskGenOnly
+		 * @return int b
+		 */
+		 protected function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly=false) {
+			$b = 0;
+			$bitMask = array();
+			$bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
+			if ($maskGenOnly) {
+				return;
+			}
+			$d = $s;
+			for ($y=0; $y<$width; ++$y) {
+				for ($x=0; $x<$width; ++$x) {
+					if ($bitMask[$y][$x] == 1) {
+						$d[$y][$x] = chr(ord($s[$y][$x]) ^ (int)$bitMask[$y][$x]);
+					}
+					$b += (int)(ord($d[$y][$x]) & 1);
+				}
+			}
+			return $b;
+		}
+
+		/**
+		 * makeMask
+		 * @param int $width
+		 * @param array $frame
+		 * @param int $maskNo
+		 * @param int $level
+		 * @return array mask
+		 */
+		 protected function makeMask($width, $frame, $maskNo, $level) {
+			$masked = array_fill(0, $width, str_repeat("\0", $width));
+			$this->makeMaskNo($maskNo, $width, $frame, $masked);
+			$this->writeFormatInformation($width, $masked, $maskNo, $level);
+			return $masked;
+		}
+
+		/**
+		 * calcN1N3
+		 * @param int $length
+		 * @return int demerit
+		 */
+		 protected function calcN1N3($length) {
+			$demerit = 0;
+			for ($i=0; $i<$length; ++$i) {
+				if ($this->runLength[$i] >= 5) {
+					$demerit += (N1 + ($this->runLength[$i] - 5));
+				}
+				if ($i & 1) {
+					if (($i >= 3) AND ($i < ($length-2)) AND ($this->runLength[$i] % 3 == 0)) {
+						$fact = (int)($this->runLength[$i] / 3);
+						if (($this->runLength[$i-2] == $fact)
+							AND ($this->runLength[$i-1] == $fact)
+							AND ($this->runLength[$i+1] == $fact)
+							AND ($this->runLength[$i+2] == $fact)) {
+							if (($this->runLength[$i-3] < 0) OR ($this->runLength[$i-3] >= (4 * $fact))) {
+								$demerit += N3;
+							} elseif ((($i+3) >= $length) OR ($this->runLength[$i+3] >= (4 * $fact))) {
+								$demerit += N3;
+							}
+						}
+					}
+				}
+			}
+			return $demerit;
+		}
+
+		/**
+		 * evaluateSymbol
+		 * @param int $width
+		 * @param array $frame
+		 * @return int demerit
+		 */
+		 protected function evaluateSymbol($width, $frame) {
+			$head = 0;
+			$demerit = 0;
+			for ($y=0; $y<$width; ++$y) {
+				$head = 0;
+				$this->runLength[0] = 1;
+				$frameY = $frame[$y];
+				if ($y > 0) {
+					$frameYM = $frame[$y-1];
+				}
+				for ($x=0; $x<$width; ++$x) {
+					if (($x > 0) AND ($y > 0)) {
+						$b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]);
+						$w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]);
+						if (($b22 | ($w22 ^ 1)) & 1) {
+							$demerit += N2;
+						}
+					}
+					if (($x == 0) AND (ord($frameY[$x]) & 1)) {
+						$this->runLength[0] = -1;
+						$head = 1;
+						$this->runLength[$head] = 1;
+					} elseif ($x > 0) {
+						if ((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) {
+							$head++;
+							$this->runLength[$head] = 1;
+						} else {
+							$this->runLength[$head]++;
+						}
+					}
+				}
+				$demerit += $this->calcN1N3($head+1);
+			}
+			for ($x=0; $x<$width; ++$x) {
+				$head = 0;
+				$this->runLength[0] = 1;
+				for ($y=0; $y<$width; ++$y) {
+					if (($y == 0) AND (ord($frame[$y][$x]) & 1)) {
+						$this->runLength[0] = -1;
+						$head = 1;
+						$this->runLength[$head] = 1;
+					} elseif ($y > 0) {
+						if ((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) {
+							$head++;
+							$this->runLength[$head] = 1;
+						} else {
+							$this->runLength[$head]++;
+						}
+					}
+				}
+				$demerit += $this->calcN1N3($head+1);
+			}
+			return $demerit;
+		}
+
+		/**
+		 * mask
+		 * @param int $width
+		 * @param array $frame
+		 * @param int $level
+		 * @return array best mask
+		 */
+		 protected function mask($width, $frame, $level) {
+			$minDemerit = PHP_INT_MAX;
+			$bestMaskNum = 0;
+			$bestMask = array();
+			$checked_masks = array(0, 1, 2, 3, 4, 5, 6, 7);
+			if (QR_FIND_FROM_RANDOM !== false) {
+				$howManuOut = 8 - (QR_FIND_FROM_RANDOM % 9);
+				for ($i = 0; $i <  $howManuOut; ++$i) {
+					$remPos = rand (0, count($checked_masks)-1);
+					unset($checked_masks[$remPos]);
+					$checked_masks = array_values($checked_masks);
+				}
+			}
+			$bestMask = $frame;
+			foreach ($checked_masks as $i) {
+				$mask = array_fill(0, $width, str_repeat("\0", $width));
+				$demerit = 0;
+				$blacks = 0;
+				$blacks  = $this->makeMaskNo($i, $width, $frame, $mask);
+				$blacks += $this->writeFormatInformation($width, $mask, $i, $level);
+				$blacks  = (int)(100 * $blacks / ($width * $width));
+				$demerit = (int)((int)(abs($blacks - 50) / 5) * N4);
+				$demerit += $this->evaluateSymbol($width, $mask);
+				if ($demerit < $minDemerit) {
+					$minDemerit = $demerit;
+					$bestMask = $mask;
+					$bestMaskNum = $i;
+				}
+			}
+			return $bestMask;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRsplit
+
+		/**
+		 * Return true if the character at specified position is a number
+		 * @param string $str string
+		 * @param int $pos characted position
+		 * @return boolean true of false
+		 */
+		 protected function isdigitat($str, $pos) {
+			if ($pos >= strlen($str)) {
+				return false;
+			}
+			return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
+		}
+
+		/**
+		 * Return true if the character at specified position is an alphanumeric character
+		 * @param string $str string
+		 * @param int $pos characted position
+		 * @return boolean true of false
+		 */
+		 protected function isalnumat($str, $pos) {
+			if ($pos >= strlen($str)) {
+				return false;
+			}
+			return ($this->lookAnTable(ord($str[$pos])) >= 0);
+		}
+
+		/**
+		 * identifyMode
+		 * @param int $pos
+		 * @return int mode
+		 */
+		 protected function identifyMode($pos) {
+			if ($pos >= strlen($this->dataStr)) {
+				return QR_MODE_NL;
+			}
+			$c = $this->dataStr[$pos];
+			if ($this->isdigitat($this->dataStr, $pos)) {
+				return QR_MODE_NM;
+			} elseif ($this->isalnumat($this->dataStr, $pos)) {
+				return QR_MODE_AN;
+			} elseif ($this->hint == QR_MODE_KJ) {
+				if ($pos+1 < strlen($this->dataStr)) {
+					$d = $this->dataStr[$pos+1];
+					$word = (ord($c) << 8) | ord($d);
+					if (($word >= 0x8140 && $word <= 0x9ffc) OR ($word >= 0xe040 && $word <= 0xebbf)) {
+						return QR_MODE_KJ;
+					}
+				}
+			}
+			return QR_MODE_8B;
+		}
+
+		/**
+		 * eatNum
+		 * @return int run
+		 */
+		 protected function eatNum() {
+			$ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
+			$p = 0;
+			while($this->isdigitat($this->dataStr, $p)) {
+				$p++;
+			}
+			$run = $p;
+			$mode = $this->identifyMode($p);
+			if ($mode == QR_MODE_8B) {
+				$dif = $this->estimateBitsModeNum($run) + 4 + $ln
+				+ $this->estimateBitsMode8(1)         // + 4 + l8
+				- $this->estimateBitsMode8($run + 1); // - 4 - l8
+				if ($dif > 0) {
+					return $this->eat8();
+				}
+			}
+			if ($mode == QR_MODE_AN) {
+				$dif = $this->estimateBitsModeNum($run) + 4 + $ln
+				+ $this->estimateBitsModeAn(1)        // + 4 + la
+				- $this->estimateBitsModeAn($run + 1);// - 4 - la
+				if ($dif > 0) {
+					return $this->eatAn();
+				}
+			}
+			$this->items = $this->appendNewInputItem($this->items, QR_MODE_NM, $run, str_split($this->dataStr));
+			return $run;
+		}
+
+		/**
+		 * eatAn
+		 * @return int run
+		 */
+		 protected function eatAn() {
+			$la = $this->lengthIndicator(QR_MODE_AN,  $this->version);
+			$ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
+			$p = 0;
+			while($this->isalnumat($this->dataStr, $p)) {
+				if ($this->isdigitat($this->dataStr, $p)) {
+					$q = $p;
+					while($this->isdigitat($this->dataStr, $q)) {
+						$q++;
+					}
+					$dif = $this->estimateBitsModeAn($p) // + 4 + la
+					+ $this->estimateBitsModeNum($q - $p) + 4 + $ln
+					- $this->estimateBitsModeAn($q); // - 4 - la
+					if ($dif < 0) {
+						break;
+					} else {
+						$p = $q;
+					}
+				} else {
+					$p++;
+				}
+			}
+			$run = $p;
+			if (!$this->isalnumat($this->dataStr, $p)) {
+				$dif = $this->estimateBitsModeAn($run) + 4 + $la
+				+ $this->estimateBitsMode8(1) // + 4 + l8
+				- $this->estimateBitsMode8($run + 1); // - 4 - l8
+				if ($dif > 0) {
+					return $this->eat8();
+				}
+			}
+			$this->items = $this->appendNewInputItem($this->items, QR_MODE_AN, $run, str_split($this->dataStr));
+			return $run;
+		}
+
+		/**
+		 * eatKanji
+		 * @return int run
+		 */
+		 protected function eatKanji() {
+			$p = 0;
+			while($this->identifyMode($p) == QR_MODE_KJ) {
+				$p += 2;
+			}
+			$this->items = $this->appendNewInputItem($this->items, QR_MODE_KJ, $p, str_split($this->dataStr));
+			return $run;
+		}
+
+		/**
+		 * eat8
+		 * @return int run
+		 */
+		 protected function eat8() {
+			$la = $this->lengthIndicator(QR_MODE_AN, $this->version);
+			$ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
+			$p = 1;
+			$dataStrLen = strlen($this->dataStr);
+			while($p < $dataStrLen) {
+				$mode = $this->identifyMode($p);
+				if ($mode == QR_MODE_KJ) {
+					break;
+				}
+				if ($mode == QR_MODE_NM) {
+					$q = $p;
+					while($this->isdigitat($this->dataStr, $q)) {
+						$q++;
+					}
+					$dif = $this->estimateBitsMode8($p) // + 4 + l8
+					+ $this->estimateBitsModeNum($q - $p) + 4 + $ln
+					- $this->estimateBitsMode8($q); // - 4 - l8
+					if ($dif < 0) {
+						break;
+					} else {
+						$p = $q;
+					}
+				} elseif ($mode == QR_MODE_AN) {
+					$q = $p;
+					while($this->isalnumat($this->dataStr, $q)) {
+						$q++;
+					}
+					$dif = $this->estimateBitsMode8($p)  // + 4 + l8
+					+ $this->estimateBitsModeAn($q - $p) + 4 + $la
+					- $this->estimateBitsMode8($q); // - 4 - l8
+					if ($dif < 0) {
+						break;
+					} else {
+						$p = $q;
+					}
+				} else {
+					$p++;
+				}
+			}
+			$run = $p;
+			$this->items = $this->appendNewInputItem($this->items, QR_MODE_8B, $run, str_split($this->dataStr));
+			return $run;
+		}
+
+		/**
+		 * splitString
+		 */
+		 protected function splitString() {
+			while (strlen($this->dataStr) > 0) {
+				if ($this->dataStr == '') {
+					return 0;
+				}
+				$mode = $this->identifyMode(0);
+				switch ($mode) {
+					case QR_MODE_NM: {
+						$length = $this->eatNum();
+						break;
+					}
+					case QR_MODE_AN: {
+						$length = $this->eatAn();
+						break;
+					}
+					case QR_MODE_KJ: {
+						if ($hint == QR_MODE_KJ) {
+							$length = $this->eatKanji();
+						} else {
+							$length = $this->eat8();
+						}
+						break;
+					}
+					default: {
+						$length = $this->eat8();
+						break;
+					}
+				}
+				if ($length == 0) {
+					return 0;
+				}
+				if ($length < 0) {
+					return -1;
+				}
+				$this->dataStr = substr($this->dataStr, $length);
+			}
+		}
+
+		/**
+		 * toUpper
+		 */
+		 protected function toUpper() {
+			$stringLen = strlen($this->dataStr);
+			$p = 0;
+			while ($p < $stringLen) {
+				$mode = $this->identifyMode(substr($this->dataStr, $p), $this->hint);
+				if ($mode == QR_MODE_KJ) {
+					$p += 2;
+				} else {
+					if ((ord($this->dataStr[$p]) >= ord('a')) AND (ord($this->dataStr[$p]) <= ord('z'))) {
+						$this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
+					}
+					$p++;
+				}
+			}
+			return $this->dataStr;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRinputItem
+
+		/**
+		 * newInputItem
+		 * @param int $mode
+		 * @param int $size
+		 * @param array $data
+		 * @param array $bstream
+		 * @return array input item
+		 */
+		 protected function newInputItem($mode, $size, $data, $bstream=null) {
+			$setData = array_slice($data, 0, $size);
+			if (count($setData) < $size) {
+				$setData = array_merge($setData, array_fill(0, ($size - count($setData)), 0));
+			}
+			if (!$this->check($mode, $size, $setData)) {
+				return NULL;
+			}
+			$inputitem = array();
+			$inputitem['mode'] = $mode;
+			$inputitem['size'] = $size;
+			$inputitem['data'] = $setData;
+			$inputitem['bstream'] = $bstream;
+			return $inputitem;
+		}
+
+		/**
+		 * encodeModeNum
+		 * @param array $inputitem
+		 * @param int $version
+		 * @return array input item
+		 */
+		 protected function encodeModeNum($inputitem, $version) {
+			$words = (int)($inputitem['size'] / 3);
+			$inputitem['bstream'] = array();
+			$val = 0x1;
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, $val);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_NM, $version), $inputitem['size']);
+			for ($i=0; $i < $words; ++$i) {
+				$val  = (ord($inputitem['data'][$i*3  ]) - ord('0')) * 100;
+				$val += (ord($inputitem['data'][$i*3+1]) - ord('0')) * 10;
+				$val += (ord($inputitem['data'][$i*3+2]) - ord('0'));
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 10, $val);
+			}
+			if ($inputitem['size'] - $words * 3 == 1) {
+				$val = ord($inputitem['data'][$words*3]) - ord('0');
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, $val);
+			} elseif (($inputitem['size'] - ($words * 3)) == 2) {
+				$val  = (ord($inputitem['data'][$words*3  ]) - ord('0')) * 10;
+				$val += (ord($inputitem['data'][$words*3+1]) - ord('0'));
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 7, $val);
+			}
+			return $inputitem;
+		}
+
+		/**
+		 * encodeModeAn
+		 * @param array $inputitem
+		 * @param int $version
+		 * @return array input item
+		 */
+		 protected function encodeModeAn($inputitem, $version) {
+			$words = (int)($inputitem['size'] / 2);
+			$inputitem['bstream'] = array();
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x02);
+			$inputitem['bstream'] = $this->appendNum(v, $this->lengthIndicator(QR_MODE_AN, $version), $inputitem['size']);
+			for ($i=0; $i < $words; ++$i) {
+				$val  = (int)$this->lookAnTable(ord($inputitem['data'][$i*2  ])) * 45;
+				$val += (int)$this->lookAnTable(ord($inputitem['data'][$i*2+1]));
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 11, $val);
+			}
+			if ($inputitem['size'] & 1) {
+				$val = $this->lookAnTable(ord($inputitem['data'][($words * 2)]));
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 6, $val);
+			}
+			return $inputitem;
+		}
+
+		/**
+		 * encodeMode8
+		 * @param array $inputitem
+		 * @param int $version
+		 * @return array input item
+		 */
+		 protected function encodeMode8($inputitem, $version) {
+			$inputitem['bstream'] = array();
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x4);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_8B, $version), $inputitem['size']);
+			for ($i=0; $i < $inputitem['size']; ++$i) {
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 8, ord($inputitem['data'][$i]));
+			}
+			return $inputitem;
+		}
+
+		/**
+		 * encodeModeKanji
+		 * @param array $inputitem
+		 * @param int $version
+		 * @return array input item
+		 */
+		 protected function encodeModeKanji($inputitem, $version) {
+			$inputitem['bstream'] = array();
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x8);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_KJ, $version), (int)($inputitem['size'] / 2));
+			for ($i=0; $i<$inputitem['size']; $i+=2) {
+				$val = (ord($inputitem['data'][$i]) << 8) | ord($inputitem['data'][$i+1]);
+				if ($val <= 0x9ffc) {
+					$val -= 0x8140;
+				} else {
+					$val -= 0xc140;
+				}
+				$h = ($val >> 8) * 0xc0;
+				$val = ($val & 0xff) + $h;
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 13, $val);
+			}
+			return $inputitem;
+		}
+
+		/**
+		 * encodeModeStructure
+		 * @param array $inputitem
+		 * @return array input item
+		 */
+		 protected function encodeModeStructure($inputitem) {
+			$inputitem['bstream'] = array();
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x03);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, ord($inputitem['data'][1]) - 1);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, ord($inputitem['data'][0]) - 1);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 8, ord($inputitem['data'][2]));
+			return $inputitem;
+		}
+
+		/**
+		 * encodeBitStream
+		 * @param array $inputitem
+		 * @param int $version
+		 * @return array input item
+		 */
+		 protected function encodeBitStream($inputitem, $version) {
+			$inputitem['bstream'] = array();
+			$words = $this->maximumWords($inputitem['mode'], $version);
+			if ($inputitem['size'] > $words) {
+				$st1 = $this->newInputItem($inputitem['mode'], $words, $inputitem['data']);
+				$st2 = $this->newInputItem($inputitem['mode'], $inputitem['size'] - $words, array_slice($inputitem['data'], $words));
+				$st1 = $this->encodeBitStream($st1, $version);
+				$st2 = $this->encodeBitStream($st2, $version);
+				$inputitem['bstream'] = array();
+				$inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st1['bstream']);
+				$inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st2['bstream']);
+			} else {
+				switch($inputitem['mode']) {
+					case QR_MODE_NM: {
+						$inputitem = $this->encodeModeNum($inputitem, $version);
+						break;
+					}
+					case QR_MODE_AN: {
+						$inputitem = $this->encodeModeAn($inputitem, $version);
+						break;
+					}
+					case QR_MODE_8B: {
+						$inputitem = $this->encodeMode8($inputitem, $version);
+						break;
+					}
+					case QR_MODE_KJ: {
+						$inputitem = $this->encodeModeKanji($inputitem, $version);
+						break;
+					}
+					case QR_MODE_ST: {
+						$inputitem = $this->encodeModeStructure($inputitem);
+						break;
+					}
+					default: {
+						break;
+					}
+				}
+			}
+			return $inputitem;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRinput
+
+		/**
+		 * Append data to an input object.
+		 * The data is copied and appended to the input object.
+		 * @param array items input items
+		 * @param int $mode encoding mode.
+		 * @param int $size size of data (byte).
+		 * @param array $data array of input data.
+		 * @return items
+		 *
+		 */
+		protected function appendNewInputItem($items, $mode, $size, $data) {
+			$items[] = $this->newInputItem($mode, $size, $data);
+			return $items;
+		}
+
+		/**
+		 * insertStructuredAppendHeader
+		 * @param array $items
+		 * @param int $size
+		 * @param int $index
+		 * @param int $parity
+		 * @return array items
+		 */
+		 protected function insertStructuredAppendHeader($items, $size, $index, $parity) {
+			if ($size > MAX_STRUCTURED_SYMBOLS) {
+				return -1;
+			}
+			if (($index <= 0) OR ($index > MAX_STRUCTURED_SYMBOLS)) {
+				return -1;
+			}
+			$buf = array($size, $index, $parity);
+			$entry = $this->newInputItem(QR_MODE_ST, 3, buf);
+			array_unshift($items, $entry);
+			return $items;
+		}
+
+		/**
+		 * calcParity
+		 * @param array $items
+		 * @return int parity
+		 */
+		 protected function calcParity($items) {
+			$parity = 0;
+			foreach ($items as $item) {
+				if ($item['mode'] != QR_MODE_ST) {
+					for ($i=$item['size']-1; $i>=0; --$i) {
+						$parity ^= $item['data'][$i];
+					}
+				}
+			}
+			return $parity;
+		}
+
+		/**
+		 * checkModeNum
+		 * @param int $size
+		 * @param array $data
+		 * @return boolean true or false
+		 */
+		 protected function checkModeNum($size, $data) {
+			for ($i=0; $i<$size; ++$i) {
+				if ((ord($data[$i]) < ord('0')) OR (ord($data[$i]) > ord('9'))){
+					return false;
+				}
+			}
+			return true;
+		}
+
+		/**
+		 * estimateBitsModeNum
+		 * @param int $size
+		 * @return int number of bits
+		 */
+		 protected function estimateBitsModeNum($size) {
+			$w = (int)$size / 3;
+			$bits = $w * 10;
+			switch($size - $w * 3) {
+				case 1: {
+					$bits += 4;
+					break;
+				}
+				case 2: {
+					$bits += 7;
+					break;
+				}
+				default: {
+					break;
+				}
+			}
+			return $bits;
+		}
+
+		/**
+		 * Look up the alphabet-numeric convesion table (see JIS X0510:2004, pp.19).
+		 * @param int $c character value
+		 * @return value
+		 */
+		protected function lookAnTable($c) {
+			return (($c > 127)?-1:$this->anTable[$c]);
+		}
+
+		/**
+		 * checkModeAn
+		 * @param int $size
+		 * @param array $data
+		 * @return boolean true or false
+		 */
+		 protected function checkModeAn($size, $data) {
+			for ($i=0; $i<$size; ++$i) {
+				if ($this->lookAnTable(ord($data[$i])) == -1) {
+					return false;
+				}
+			}
+			return true;
+		}
+
+		/**
+		 * estimateBitsModeAn
+		 * @param int $size
+		 * @return int number of bits
+		 */
+		 protected function estimateBitsModeAn($size) {
+			$w = (int)($size / 2);
+			$bits = $w * 11;
+			if ($size & 1) {
+				$bits += 6;
+			}
+			return $bits;
+		}
+
+		/**
+		 * estimateBitsMode8
+		 * @param int $size
+		 * @return int number of bits
+		 */
+		 protected function estimateBitsMode8($size) {
+			return $size * 8;
+		}
+
+		/**
+		 * estimateBitsModeKanji
+		 * @param int $size
+		 * @return int number of bits
+		 */
+		 protected function estimateBitsModeKanji($size) {
+			return (int)(($size / 2) * 13);
+		}
+
+		/**
+		 * checkModeKanji
+		 * @param int $size
+		 * @param array $data
+		 * @return boolean true or false
+		 */
+		 protected function checkModeKanji($size, $data) {
+			if ($size & 1) {
+				return false;
+			}
+			for ($i=0; $i<$size; $i+=2) {
+				$val = (ord($data[$i]) << 8) | ord($data[$i+1]);
+				if (($val < 0x8140) OR (($val > 0x9ffc) AND ($val < 0xe040)) OR ($val > 0xebbf)) {
+					return false;
+				}
+			}
+			return true;
+		}
+
+		/**
+		 * Validate the input data.
+		 * @param int $mode encoding mode.
+		 * @param int $size size of data (byte).
+		 * @param array data data to validate
+		 * @return boolean true in case of valid data, false otherwise
+		 */
+		protected function check($mode, $size, $data) {
+			if ($size <= 0) {
+				return false;
+			}
+			switch($mode) {
+				case QR_MODE_NM: {
+					return $this->checkModeNum($size, $data);
+				}
+				case QR_MODE_AN: {
+					return $this->checkModeAn($size, $data);
+				}
+				case QR_MODE_KJ: {
+					return $this->checkModeKanji($size, $data);
+				}
+				case QR_MODE_8B: {
+					return true;
+				}
+				case QR_MODE_ST: {
+					return true;
+				}
+				default: {
+					break;
+				}
+			}
+			return false;
+		}
+
+		/**
+		 * estimateBitStreamSize
+		 * @param array $items
+		 * @param int $version
+		 * @return int bits
+		 */
+		 protected function estimateBitStreamSize($items, $version) {
+			$bits = 0;
+			if ($version == 0) {
+				$version = 1;
+			}
+			foreach ($items as $item) {
+				switch($item['mode']) {
+					case QR_MODE_NM: {
+						$bits = $this->estimateBitsModeNum($item['size']);
+						break;
+					}
+					case QR_MODE_AN: {
+						$bits = $this->estimateBitsModeAn($item['size']);
+						break;
+					}
+					case QR_MODE_8B: {
+						$bits = $this->estimateBitsMode8($item['size']);
+						break;
+					}
+					case QR_MODE_KJ: {
+						$bits = $this->estimateBitsModeKanji($item['size']);
+						break;
+					}
+					case QR_MODE_ST: {
+						return STRUCTURE_HEADER_BITS;
+					}
+					default: {
+						return 0;
+					}
+				}
+				$l = $this->lengthIndicator($item['mode'], $version);
+				$m = 1 << $l;
+				$num = (int)(($item['size'] + $m - 1) / $m);
+				$bits += $num * (4 + $l);
+			}
+			return $bits;
+		}
+
+		/**
+		 * estimateVersion
+		 * @param array $items
+		 * @return int version
+		 */
+		 protected function estimateVersion($items) {
+			$version = 0;
+			$prev = 0;
+			do {
+				$prev = $version;
+				$bits = $this->estimateBitStreamSize($items, $prev);
+				$version = $this->getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+				if ($version < 0) {
+					return -1;
+				}
+			} while ($version > $prev);
+			return $version;
+		}
+
+		/**
+		 * lengthOfCode
+		 * @param int $mode
+		 * @param int $version
+		 * @param int $bits
+		 * @return int size
+		 */
+		 protected function lengthOfCode($mode, $version, $bits) {
+			$payload = $bits - 4 - $this->lengthIndicator($mode, $version);
+			switch($mode) {
+				case QR_MODE_NM: {
+					$chunks = (int)($payload / 10);
+					$remain = $payload - $chunks * 10;
+					$size = $chunks * 3;
+					if ($remain >= 7) {
+						$size += 2;
+					} elseif ($remain >= 4) {
+						$size += 1;
+					}
+					break;
+				}
+				case QR_MODE_AN: {
+					$chunks = (int)($payload / 11);
+					$remain = $payload - $chunks * 11;
+					$size = $chunks * 2;
+					if ($remain >= 6) {
+						++$size;
+					}
+					break;
+				}
+				case QR_MODE_8B: {
+					$size = (int)($payload / 8);
+					break;
+				}
+				case QR_MODE_KJ: {
+					$size = (int)(($payload / 13) * 2);
+					break;
+				}
+				case QR_MODE_ST: {
+					$size = (int)($payload / 8);
+					break;
+				}
+				default: {
+					$size = 0;
+					break;
+				}
+			}
+			$maxsize = $this->maximumWords($mode, $version);
+			if ($size < 0) {
+				$size = 0;
+			}
+			if ($size > $maxsize) {
+				$size = $maxsize;
+			}
+			return $size;
+		}
+
+		/**
+		 * createBitStream
+		 * @param array $items
+		 * @return array of items and total bits
+		 */
+		 protected function createBitStream($items) {
+			$total = 0;
+			foreach ($items as $key => $item) {
+				$items[$key] = $this->encodeBitStream($item, $this->version);
+				$bits = count($items[$key]['bstream']);
+				$total += $bits;
+			}
+			return array($items, $total);
+		}
+
+		/**
+		 * convertData
+		 * @param array $items
+		 * @return array items
+		 */
+		 protected function convertData($items) {
+			$ver = $this->estimateVersion($items);
+			if ($ver > $this->version) {
+				$this->version = $ver;
+			}
+			for (;;) {
+				$cbs = $this->createBitStream($items);
+				$items = $cbs[0];
+				$bits = $cbs[1];
+				if ($bits < 0) {
+					return -1;
+				}
+				$ver = $this->getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+				if ($ver < 0) {
+					return -1;
+				} elseif ($ver > $this->version) {
+					$this->version = $ver;
+				} else {
+					break;
+				}
+			}
+			return $items;
+		}
+
+		/**
+		 * Append Padding Bit to bitstream
+		 * @param array $bstream
+		 * @return array bitstream
+		 */
+		 protected function appendPaddingBit($bstream) {
+			$bits = count($bstream);
+			$maxwords = $this->getDataLength($this->version, $this->level);
+			$maxbits = $maxwords * 8;
+			if ($maxbits == $bits) {
+				return 0;
+			}
+			if ($maxbits - $bits < 5) {
+				return $this->appendNum($bstream, $maxbits - $bits, 0);
+			}
+			$bits += 4;
+			$words = (int)(($bits + 7) / 8);
+			$padding = array();
+			$padding = $this->appendNum($padding, $words * 8 - $bits + 4, 0);
+			$padlen = $maxwords - $words;
+			if ($padlen > 0) {
+				$padbuf = array();
+				for ($i=0; $i<$padlen; ++$i) {
+					$padbuf[$i] = ($i&1)?0x11:0xec;
+				}
+				$padding = $this->appendBytes($padding, $padlen, $padbuf);
+			}
+			return $this->appendBitstream($bstream, $padding);
+		}
+
+		/**
+		 * mergeBitStream
+		 * @param array $bstream
+		 * @return array bitstream
+		 */
+		 protected function mergeBitStream($items) {
+			$items = $this->convertData($items);
+			$bstream = array();
+			foreach ($items as $item) {
+				$bstream = $this->appendBitstream($bstream, $item['bstream']);
+			}
+			return $bstream;
+		}
+
+		/**
+		 * Returns a stream of bits.
+		 * @param int $items
+		 * @return array padded merged byte stream
+		 */
+		protected function getBitStream($items) {
+			$bstream = $this->mergeBitStream($items);
+			return $this->appendPaddingBit($bstream);
+		}
+
+		/**
+		 * Pack all bit streams padding bits into a byte array.
+		 * @param int $items
+		 * @return array padded merged byte stream
+		 */
+		protected function getByteStream($items) {
+			$bstream = $this->getBitStream($items);
+			return $this->bitstreamToByte($bstream);
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRbitstream
+
+		/**
+		 * Return an array with zeros
+		 * @param int $setLength array size
+		 * @return array
+		 */
+		 protected function allocate($setLength) {
+			return array_fill(0, $setLength, 0);
+		}
+
+		/**
+		 * Return new bitstream from number
+		 * @param int $bits number of bits
+		 * @param int $num number
+		 * @return array bitstream
+		 */
+		 protected function newFromNum($bits, $num) {
+			$bstream = $this->allocate($bits);
+			$mask = 1 << ($bits - 1);
+			for ($i=0; $i<$bits; ++$i) {
+				if ($num & $mask) {
+					$bstream[$i] = 1;
+				} else {
+					$bstream[$i] = 0;
+				}
+				$mask = $mask >> 1;
+			}
+			return $bstream;
+		}
+
+		/**
+		 * Return new bitstream from bytes
+		 * @param int $size size
+		 * @param array $data bytes
+		 * @return array bitstream
+		 */
+		 protected function newFromBytes($size, $data) {
+			$bstream = $this->allocate($size * 8);
+			$p=0;
+			for ($i=0; $i<$size; ++$i) {
+				$mask = 0x80;
+				for ($j=0; $j<8; ++$j) {
+					if ($data[$i] & $mask) {
+						$bstream[$p] = 1;
+					} else {
+						$bstream[$p] = 0;
+					}
+					$p++;
+					$mask = $mask >> 1;
+				}
+			}
+			return $bstream;
+		}
+
+		/**
+		 * Append one bitstream to another
+		 * @param array $bitstream original bitstream
+		 * @param array $append bitstream to append
+		 * @return array bitstream
+		 */
+		 protected function appendBitstream($bitstream, $append) {
+			if ((!is_array($append)) OR (count($append) == 0)) {
+				return $bitstream;
+			}
+			if (count($bitstream) == 0) {
+				return $append;
+			}
+			return array_values(array_merge($bitstream, $append));
+		}
+
+		/**
+		 * Append one bitstream created from number to another
+		 * @param array $bitstream original bitstream
+		 * @param int $bits number of bits
+		 * @param int $num number
+		 * @return array bitstream
+		 */
+		 protected function appendNum($bitstream, $bits, $num) {
+			if ($bits == 0) {
+				return 0;
+			}
+			$b = $this->newFromNum($bits, $num);
+			return $this->appendBitstream($bitstream, $b);
+		}
+
+		/**
+		 * Append one bitstream created from bytes to another
+		 * @param array $bitstream original bitstream
+		 * @param int $size size
+		 * @param array $data bytes
+		 * @return array bitstream
+		 */
+		 protected function appendBytes($bitstream, $size, $data) {
+			if ($size == 0) {
+				return 0;
+			}
+			$b = $this->newFromBytes($size, $data);
+			return $this->appendBitstream($bitstream, $b);
+		}
+
+		/**
+		 * Convert bitstream to bytes
+		 * @param array $bitstream original bitstream
+		 * @return array of bytes
+		 */
+		 protected function bitstreamToByte($bstream) {
+			$size = count($bstream);
+			if ($size == 0) {
+				return array();
+			}
+			$data = array_fill(0, (int)(($size + 7) / 8), 0);
+			$bytes = (int)($size / 8);
+			$p = 0;
+			for ($i=0; $i<$bytes; $i++) {
+				$v = 0;
+				for ($j=0; $j<8; $j++) {
+					$v = $v << 1;
+					$v |= $bstream[$p];
+					$p++;
+				}
+				$data[$i] = $v;
+			}
+			if ($size & 7) {
+				$v = 0;
+				for ($j=0; $j<($size & 7); $j++) {
+					$v = $v << 1;
+					$v |= $bstream[$p];
+					$p++;
+				}
+				$data[$bytes] = $v;
+			}
+			return $data;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRspec
+
+		/**
+		 * Replace a value on the array at the specified position
+		 * @param array $srctab
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @param string $repl value to replace
+		 * @param int $replLen length of the repl string
+		 * @return array srctab
+		 */
+		 protected function qrstrset($srctab, $x, $y, $repl, $replLen=false) {
+			$srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
+			return $srctab;
+		}
+
+		/**
+		 * Return maximum data code length (bytes) for the version.
+		 * @param int $version version
+		 * @param int $level error correction level
+		 * @return int maximum size (bytes)
+		 */
+		protected function getDataLength($version, $level) {
+			return $this->capacity[$version][QRCAP_WORDS] - $this->capacity[$version][QRCAP_EC][$level];
+		}
+
+		/**
+		 * Return maximum error correction code length (bytes) for the version.
+		 * @param int $version version
+		 * @param int $level error correction level
+		 * @return int ECC size (bytes)
+		 */
+		protected function getECCLength($version, $level){
+			return $this->capacity[$version][QRCAP_EC][$level];
+		}
+
+		/**
+		 * Return the width of the symbol for the version.
+		 * @param int $version version
+		 * @return int width
+		 */
+		protected function getWidth($version) {
+			return $this->capacity[$version][QRCAP_WIDTH];
+		}
+
+		/**
+		 * Return the numer of remainder bits.
+		 * @param int $version version
+		 * @return int number of remainder bits
+		 */
+		protected function getRemainder($version) {
+			return $this->capacity[$version][QRCAP_REMINDER];
+		}
+
+		/**
+		 * Return a version number that satisfies the input code length.
+		 * @param int $size input code length (byte)
+		 * @param int $level error correction level
+		 * @return int version number
+		 */
+		protected function getMinimumVersion($size, $level) {
+			for ($i=1; $i <= QRSPEC_VERSION_MAX; ++$i) {
+				$words  = $this->capacity[$i][QRCAP_WORDS] - $this->capacity[$i][QRCAP_EC][$level];
+				if ($words >= $size) {
+					return $i;
+				}
+			}
+			return -1;
+		}
+
+		/**
+		 * Return the size of length indicator for the mode and version.
+		 * @param int $mode encoding mode
+		 * @param int $version version
+		 * @return int the size of the appropriate length indicator (bits).
+		 */
+		protected function lengthIndicator($mode, $version) {
+			if ($mode == QR_MODE_ST) {
+				return 0;
+			}
+			if ($version <= 9) {
+				$l = 0;
+			} elseif ($version <= 26) {
+				$l = 1;
+			} else {
+				$l = 2;
+			}
+			return $this->lengthTableBits[$mode][$l];
+		}
+
+		/**
+		 * Return the maximum length for the mode and version.
+		 * @param int $mode encoding mode
+		 * @param int $version version
+		 * @return int the maximum length (bytes)
+		 */
+		protected function maximumWords($mode, $version) {
+			if ($mode == QR_MODE_ST) {
+				return 3;
+			}
+			if ($version <= 9) {
+				$l = 0;
+			} else if ($version <= 26) {
+				$l = 1;
+			} else {
+				$l = 2;
+			}
+			$bits = $this->lengthTableBits[$mode][$l];
+			$words = (1 << $bits) - 1;
+			if ($mode == QR_MODE_KJ) {
+				$words *= 2; // the number of bytes is required
+			}
+			return $words;
+		}
+
+		/**
+		 * Return an array of ECC specification.
+		 * @param int $version version
+		 * @param int $level error correction level
+		 * @param array $spec an array of ECC specification contains as following: {# of type1 blocks, # of data code, # of ecc code, # of type2 blocks, # of data code}
+		 * @return array spec
+		 */
+		protected function getEccSpec($version, $level, $spec) {
+			if (count($spec) < 5) {
+				$spec = array(0, 0, 0, 0, 0);
+			}
+			$b1 = $this->eccTable[$version][$level][0];
+			$b2 = $this->eccTable[$version][$level][1];
+			$data = $this->getDataLength($version, $level);
+			$ecc = $this->getECCLength($version, $level);
+			if ($b2 == 0) {
+				$spec[0] = $b1;
+				$spec[1] = (int)($data / $b1);
+				$spec[2] = (int)($ecc / $b1);
+				$spec[3] = 0;
+				$spec[4] = 0;
+			} else {
+				$spec[0] = $b1;
+				$spec[1] = (int)($data / ($b1 + $b2));
+				$spec[2] = (int)($ecc  / ($b1 + $b2));
+				$spec[3] = $b2;
+				$spec[4] = $spec[1] + 1;
+			}
+			return $spec;
+		}
+
+		/**
+		 * Put an alignment marker.
+		 * @param array $frame frame
+		 * @param int $width width
+		 * @param int $ox X center coordinate of the pattern
+		 * @param int $oy Y center coordinate of the pattern
+		 * @return array frame
+		 */
+		protected function putAlignmentMarker($frame, $ox, $oy) {
+			$finder = array(
+				"\xa1\xa1\xa1\xa1\xa1",
+				"\xa1\xa0\xa0\xa0\xa1",
+				"\xa1\xa0\xa1\xa0\xa1",
+				"\xa1\xa0\xa0\xa0\xa1",
+				"\xa1\xa1\xa1\xa1\xa1"
+				);
+			$yStart = $oy - 2;
+			$xStart = $ox - 2;
+			for ($y=0; $y < 5; $y++) {
+				$frame = $this->qrstrset($frame, $xStart, $yStart+$y, $finder[$y]);
+			}
+			return $frame;
+		}
+
+		/**
+		 * Put an alignment pattern.
+		 * @param int $version version
+		 * @param array $fram frame
+		 * @param int $width width
+		 * @return array frame
+		 */
+		 protected function putAlignmentPattern($version, $frame, $width) {
+			if ($version < 2) {
+				return $frame;
+			}
+			$d = $this->alignmentPattern[$version][1] - $this->alignmentPattern[$version][0];
+			if ($d < 0) {
+				$w = 2;
+			} else {
+				$w = (int)(($width - $this->alignmentPattern[$version][0]) / $d + 2);
+			}
+			if ($w * $w - 3 == 1) {
+				$x = $this->alignmentPattern[$version][0];
+				$y = $this->alignmentPattern[$version][0];
+				$frame = $this->putAlignmentMarker($frame, $x, $y);
+				return $frame;
+			}
+			$cx = $this->alignmentPattern[$version][0];
+			$wo = $w - 1;
+			for ($x=1; $x < $wo; ++$x) {
+				$frame = $this->putAlignmentMarker($frame, 6, $cx);
+				$frame = $this->putAlignmentMarker($frame, $cx,  6);
+				$cx += $d;
+			}
+			$cy = $this->alignmentPattern[$version][0];
+			for ($y=0; $y < $wo; ++$y) {
+				$cx = $this->alignmentPattern[$version][0];
+				for ($x=0; $x < $wo; ++$x) {
+					$frame = $this->putAlignmentMarker($frame, $cx, $cy);
+					$cx += $d;
+				}
+				$cy += $d;
+			}
+			return $frame;
+		}
+
+		/**
+		 * Return BCH encoded version information pattern that is used for the symbol of version 7 or greater. Use lower 18 bits.
+		 * @param int $version version
+		 * @return BCH encoded version information pattern
+		 */
+		protected function getVersionPattern($version) {
+			if (($version < 7) OR ($version > QRSPEC_VERSION_MAX)) {
+				return 0;
+			}
+			return $this->versionPattern[($version - 7)];
+		}
+
+		/**
+		 * Return BCH encoded format information pattern.
+		 * @param array $mask
+		 * @param int $level error correction level
+		 * @return BCH encoded format information pattern
+		 */
+		protected function getFormatInfo($mask, $level) {
+			if (($mask < 0) OR ($mask > 7)) {
+				return 0;
+			}
+			if (($level < 0) OR ($level > 3)) {
+				return 0;
+			}
+			return $this->formatInfo[$level][$mask];
+		}
+
+		/**
+		 * Put a finder pattern.
+		 * @param array $frame frame
+		 * @param int $width width
+		 * @param int $ox X center coordinate of the pattern
+		 * @param int $oy Y center coordinate of the pattern
+		 * @return array frame
+		 */
+		protected function putFinderPattern($frame, $ox, $oy) {
+			$finder = array(
+			"\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
+			"\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+			"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+			"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+			"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+			"\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+			"\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
+			);
+			for ($y=0; $y < 7; $y++) {
+				$frame = $this->qrstrset($frame, $ox, ($oy + $y), $finder[$y]);
+			}
+			return $frame;
+		}
+
+		/**
+		 * Return a copy of initialized frame.
+		 * @param int $version version
+		 * @return Array of unsigned char.
+		 */
+		protected function createFrame($version) {
+			$width = $this->capacity[$version][QRCAP_WIDTH];
+			$frameLine = str_repeat ("\0", $width);
+			$frame = array_fill(0, $width, $frameLine);
+			// Finder pattern
+			$frame = $this->putFinderPattern($frame, 0, 0);
+			$frame = $this->putFinderPattern($frame, $width - 7, 0);
+			$frame = $this->putFinderPattern($frame, 0, $width - 7);
+			// Separator
+			$yOffset = $width - 7;
+			for ($y=0; $y < 7; ++$y) {
+				$frame[$y][7] = "\xc0";
+				$frame[$y][$width - 8] = "\xc0";
+				$frame[$yOffset][7] = "\xc0";
+				++$yOffset;
+			}
+			$setPattern = str_repeat("\xc0", 8);
+			$frame = $this->qrstrset($frame, 0, 7, $setPattern);
+			$frame = $this->qrstrset($frame, $width-8, 7, $setPattern);
+			$frame = $this->qrstrset($frame, 0, $width - 8, $setPattern);
+			// Format info
+			$setPattern = str_repeat("\x84", 9);
+			$frame = $this->qrstrset($frame, 0, 8, $setPattern);
+			$frame = $this->qrstrset($frame, $width - 8, 8, $setPattern, 8);
+			$yOffset = $width - 8;
+			for ($y=0; $y < 8; ++$y,++$yOffset) {
+				$frame[$y][8] = "\x84";
+				$frame[$yOffset][8] = "\x84";
+			}
+			// Timing pattern
+			$wo = $width - 15;
+			for ($i=1; $i < $wo; ++$i) {
+				$frame[6][7+$i] = chr(0x90 | ($i & 1));
+				$frame[7+$i][6] = chr(0x90 | ($i & 1));
+			}
+			// Alignment pattern
+			$frame = $this->putAlignmentPattern($version, $frame, $width);
+			// Version information
+			if ($version >= 7) {
+				$vinf = $this->getVersionPattern($version);
+				$v = $vinf;
+				for ($x=0; $x<6; ++$x) {
+					for ($y=0; $y<3; ++$y) {
+						$frame[($width - 11)+$y][$x] = chr(0x88 | ($v & 1));
+						$v = $v >> 1;
+					}
+				}
+				$v = $vinf;
+				for ($y=0; $y<6; ++$y) {
+					for ($x=0; $x<3; ++$x) {
+						$frame[$y][$x+($width - 11)] = chr(0x88 | ($v & 1));
+						$v = $v >> 1;
+					}
+				}
+			}
+			// and a little bit...
+			$frame[$width - 8][8] = "\x81";
+			return $frame;
+		}
+
+		/**
+		 * Set new frame for the specified version.
+		 * @param int $version version
+		 * @return Array of unsigned char.
+		 */
+		protected function newFrame($version) {
+			if (($version < 1) OR ($version > QRSPEC_VERSION_MAX)) {
+				return NULL;
+			}
+			if (!isset($this->frames[$version])) {
+				$this->frames[$version] = $this->createFrame($version);
+			}
+			if (is_null($this->frames[$version])) {
+				return NULL;
+			}
+			return $this->frames[$version];
+		}
+
+		/**
+		 * Return block number 0
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsBlockNum($spec) {
+			return ($spec[0] + $spec[3]);
+		}
+
+		/**
+		* Return block number 1
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsBlockNum1($spec) {
+			return $spec[0];
+		}
+
+		/**
+		 * Return data codes 1
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsDataCodes1($spec) {
+			return $spec[1];
+		}
+
+		/**
+		 * Return ecc codes 1
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsEccCodes1($spec) {
+			return $spec[2];
+		}
+
+		/**
+		 * Return block number 2
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsBlockNum2($spec) {
+			return $spec[3];
+		}
+
+		/**
+		 * Return data codes 2
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsDataCodes2($spec) {
+			return $spec[4];
+		}
+
+		/**
+		 * Return ecc codes 2
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsEccCodes2($spec) {
+			return $spec[2];
+		}
+
+		/**
+		 * Return data length
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsDataLength($spec) {
+			return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);
+		}
+
+		/**
+		 * Return ecc length
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsEccLength($spec) {
+			return ($spec[0] + $spec[3]) * $spec[2];
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRrs
+
+		/**
+		 * Initialize a Reed-Solomon codec and add it to existing rsitems
+		 * @param int $symsize symbol size, bits
+		 * @param int $gfpoly  Field generator polynomial coefficients
+		 * @param int $fcr  first root of RS code generator polynomial, index form
+		 * @param int $prim  primitive element to generate polynomial roots
+		 * @param int $nroots RS code generator polynomial degree (number of roots)
+		 * @param int $pad  padding bytes at front of shortened block
+		 * @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.
+		 */
+		 protected function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
+			foreach ($this->rsitems as $rs) {
+				if (($rs['pad'] != $pad) OR ($rs['nroots'] != $nroots) OR ($rs['mm'] != $symsize)
+					OR ($rs['gfpoly'] != $gfpoly) OR ($rs['fcr'] != $fcr) OR ($rs['prim'] != $prim)) {
+					continue;
+				}
+				return $rs;
+			}
+			$rs = $this->init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
+			array_unshift($this->rsitems, $rs);
+			return $rs;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRrsItem
+
+		/**
+		 * modnn
+		 * @param array RS values
+		 * @param int $x X position
+		 * @return int X osition
+		 */
+		 protected function modnn($rs, $x) {
+			while ($x >= $rs['nn']) {
+				$x -= $rs['nn'];
+				$x = ($x >> $rs['mm']) + ($x & $rs['nn']);
+			}
+			return $x;
+		}
+
+		/**
+		 * Initialize a Reed-Solomon codec and returns an array of values.
+		 * @param int $symsize symbol size, bits
+		 * @param int $gfpoly  Field generator polynomial coefficients
+		 * @param int $fcr  first root of RS code generator polynomial, index form
+		 * @param int $prim  primitive element to generate polynomial roots
+		 * @param int $nroots RS code generator polynomial degree (number of roots)
+		 * @param int $pad  padding bytes at front of shortened block
+		 * @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.
+		 */
+		protected function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
+			// Based on Reed solomon encoder by Phil Karn, KA9Q (GNU-LGPLv2)
+			$rs = null;
+			// Check parameter ranges
+			if (($symsize < 0) OR ($symsize > 8)) {
+				return $rs;
+			}
+			if (($fcr < 0) OR ($fcr >= (1<<$symsize))) {
+				return $rs;
+			}
+			if (($prim <= 0) OR ($prim >= (1<<$symsize))) {
+				return $rs;
+			}
+			if (($nroots < 0) OR ($nroots >= (1<<$symsize))) {
+				return $rs;
+			}
+			if (($pad < 0) OR ($pad >= ((1<<$symsize) -1 - $nroots))) {
+				return $rs;
+			}
+			$rs = array();
+			$rs['mm'] = $symsize;
+			$rs['nn'] = (1 << $symsize) - 1;
+			$rs['pad'] = $pad;
+			$rs['alpha_to'] = array_fill(0, ($rs['nn'] + 1), 0);
+			$rs['index_of'] = array_fill(0, ($rs['nn'] + 1), 0);
+			// PHP style macro replacement ;)
+			$NN =& $rs['nn'];
+			$A0 =& $NN;
+			// Generate Galois field lookup tables
+			$rs['index_of'][0] = $A0; // log(zero) = -inf
+			$rs['alpha_to'][$A0] = 0; // alpha**-inf = 0
+			$sr = 1;
+			for ($i=0; $i<$rs['nn']; ++$i) {
+				$rs['index_of'][$sr] = $i;
+				$rs['alpha_to'][$i] = $sr;
+				$sr <<= 1;
+				if ($sr & (1 << $symsize)) {
+					$sr ^= $gfpoly;
+				}
+				$sr &= $rs['nn'];
+			}
+			if ($sr != 1) {
+				// field generator polynomial is not primitive!
+				return NULL;
+			}
+			// Form RS code generator polynomial from its roots
+			$rs['genpoly'] = array_fill(0, ($nroots + 1), 0);
+			$rs['fcr'] = $fcr;
+			$rs['prim'] = $prim;
+			$rs['nroots'] = $nroots;
+			$rs['gfpoly'] = $gfpoly;
+			// Find prim-th root of 1, used in decoding
+			for ($iprim=1; ($iprim % $prim) != 0; $iprim += $rs['nn']) {
+				; // intentional empty-body loop!
+			}
+			$rs['iprim'] = (int)($iprim / $prim);
+			$rs['genpoly'][0] = 1;
+
+
+			for ($i = 0,$root=$fcr*$prim; $i < $nroots; $i++, $root += $prim) {
+				$rs['genpoly'][$i+1] = 1;
+				// Multiply rs->genpoly[] by  @**(root + x)
+				for ($j = $i; $j > 0; --$j) {
+					if ($rs['genpoly'][$j] != 0) {
+						$rs['genpoly'][$j] = $rs['genpoly'][$j-1] ^ $rs['alpha_to'][$this->modnn($rs, $rs['index_of'][$rs['genpoly'][$j]] + $root)];
+					} else {
+						$rs['genpoly'][$j] = $rs['genpoly'][$j-1];
+					}
+				}
+				// rs->genpoly[0] can never be zero
+				$rs['genpoly'][0] = $rs['alpha_to'][$this->modnn($rs, $rs['index_of'][$rs['genpoly'][0]] + $root)];
+			}
+			// convert rs->genpoly[] to index form for quicker encoding
+			for ($i = 0; $i <= $nroots; ++$i) {
+				$rs['genpoly'][$i] = $rs['index_of'][$rs['genpoly'][$i]];
+			}
+			return $rs;
+		}
+
+		/**
+		 * Encode a Reed-Solomon codec and returns the parity array
+		 * @param array $rs RS values
+		 * @param array $data data
+		 * @param array $parity parity
+		 * @return parity array
+		 */
+		 protected function encode_rs_char($rs, $data, $parity) {
+			$MM       =& $rs['mm']; // bits per symbol
+			$NN       =& $rs['nn']; // the total number of symbols in a RS block
+			$ALPHA_TO =& $rs['alpha_to']; // the address of an array of NN elements to convert Galois field elements in index (log) form to polynomial form
+			$INDEX_OF =& $rs['index_of']; // the address of an array of NN elements to convert Galois field elements in polynomial form to index (log) form
+			$GENPOLY  =& $rs['genpoly']; // an array of NROOTS+1 elements containing the generator polynomial in index form
+			$NROOTS   =& $rs['nroots']; // the number of roots in the RS code generator polynomial, which is the same as the number of parity symbols in a block
+			$FCR      =& $rs['fcr']; // first consecutive root, index form
+			$PRIM     =& $rs['prim']; // primitive element, index form
+			$IPRIM    =& $rs['iprim']; // prim-th root of 1, index form
+			$PAD      =& $rs['pad']; // the number of pad symbols in a block
+			$A0       =& $NN;
+			$parity = array_fill(0, $NROOTS, 0);
+			for ($i=0; $i < ($NN - $NROOTS - $PAD); $i++) {
+				$feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
+				if ($feedback != $A0) {
+					// feedback term is non-zero
+					// This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
+					// always be for the polynomials constructed by init_rs()
+					$feedback = $this->modnn($rs, $NN - $GENPOLY[$NROOTS] + $feedback);
+					for ($j=1; $j < $NROOTS; ++$j) {
+					$parity[$j] ^= $ALPHA_TO[$this->modnn($rs, $feedback + $GENPOLY[($NROOTS - $j)])];
+					}
+				}
+				// Shift
+				array_shift($parity);
+				if ($feedback != $A0) {
+					array_push($parity, $ALPHA_TO[$this->modnn($rs, $feedback + $GENPOLY[0])]);
+				} else {
+					array_push($parity, 0);
+				}
+			}
+			return $parity;
+		}
+
+	} // end QRcode class
+
+} // END OF "class_exists QRcode"
+?>
diff --git a/webui/system/helper/phpqrcode/index.php b/webui/system/helper/phpqrcode/index.php
new file mode 100644
index 00000000..9e14b7ea
--- /dev/null
+++ b/webui/system/helper/phpqrcode/index.php
@@ -0,0 +1,94 @@
+<?php    
+/*
+ * PHP QR Code encoder
+ *
+ * Exemplatory usage
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+    
+    echo "<h1>PHP QR Code</h1><hr/>";
+    
+    //set it to writable location, a place for temp generated PNG files
+    $PNG_TEMP_DIR = dirname(__FILE__).DIRECTORY_SEPARATOR.'temp'.DIRECTORY_SEPARATOR;
+    
+    //html PNG location prefix
+    $PNG_WEB_DIR = 'temp/';
+
+    include "qrlib.php";    
+    
+    //ofcourse we need rights to create temp dir
+    if (!file_exists($PNG_TEMP_DIR))
+        mkdir($PNG_TEMP_DIR);
+    
+    
+    $filename = $PNG_TEMP_DIR.'test.png';
+    
+    //processing form input
+    //remember to sanitize user input in real-life solution !!!
+    $errorCorrectionLevel = 'L';
+    if (isset($_REQUEST['level']) && in_array($_REQUEST['level'], array('L','M','Q','H')))
+        $errorCorrectionLevel = $_REQUEST['level'];    
+
+    $matrixPointSize = 4;
+    if (isset($_REQUEST['size']))
+        $matrixPointSize = min(max((int)$_REQUEST['size'], 1), 10);
+
+
+    if (isset($_REQUEST['data'])) { 
+    
+        //it's very important!
+        if (trim($_REQUEST['data']) == '')
+            die('data cannot be empty! <a href="?">back</a>');
+            
+        // user data
+        $filename = $PNG_TEMP_DIR.'test'.md5($_REQUEST['data'].'|'.$errorCorrectionLevel.'|'.$matrixPointSize).'.png';
+        QRcode::png($_REQUEST['data'], $filename, $errorCorrectionLevel, $matrixPointSize, 2);    
+        
+    } else {    
+    
+        //default data
+        echo 'You can provide data in GET parameter: <a href="?data=like_that">like that</a><hr/>';    
+        QRcode::png('PHP QR Code :)', $filename, $errorCorrectionLevel, $matrixPointSize, 2);    
+        
+    }    
+        
+    //display generated file
+    echo '<img src="'.$PNG_WEB_DIR.basename($filename).'" /><hr/>';  
+    
+    //config form
+    echo '<form action="index.php" method="post">
+        Data:&nbsp;<input name="data" value="'.(isset($_REQUEST['data'])?htmlspecialchars($_REQUEST['data']):'PHP QR Code :)').'" />&nbsp;
+        ECC:&nbsp;<select name="level">
+            <option value="L"'.(($errorCorrectionLevel=='L')?' selected':'').'>L - smallest</option>
+            <option value="M"'.(($errorCorrectionLevel=='M')?' selected':'').'>M</option>
+            <option value="Q"'.(($errorCorrectionLevel=='Q')?' selected':'').'>Q</option>
+            <option value="H"'.(($errorCorrectionLevel=='H')?' selected':'').'>H - best</option>
+        </select>&nbsp;
+        Size:&nbsp;<select name="size">';
+        
+    for($i=1;$i<=10;$i++)
+        echo '<option value="'.$i.'"'.(($matrixPointSize==$i)?' selected':'').'>'.$i.'</option>';
+        
+    echo '</select>&nbsp;
+        <input type="submit" value="GENERATE"></form><hr/>';
+        
+    // benchmark
+    QRtools::timeBenchmark();    
+
+    
\ No newline at end of file
diff --git a/webui/system/helper/phpqrcode/phpqrcode.php b/webui/system/helper/phpqrcode/phpqrcode.php
new file mode 100644
index 00000000..80adb9df
--- /dev/null
+++ b/webui/system/helper/phpqrcode/phpqrcode.php
@@ -0,0 +1,3312 @@
+<?php
+
+/*
+ * PHP QR Code encoder
+ *
+ * This file contains MERGED version of PHP QR Code library.
+ * It was auto-generated from full version for your convenience.
+ *
+ * This merged version was configured to not requre any external files,
+ * with disabled cache, error loging and weker but faster mask matching.
+ * If you need tune it up please use non-merged version.
+ *
+ * For full version, documentation, examples of use please visit:
+ *
+ *    http://phpqrcode.sourceforge.net/
+ *    https://sourceforge.net/projects/phpqrcode/
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+ 
+
+/*
+ * Version: 1.1.4
+ * Build: 2010100721
+ */
+
+
+
+//---- qrconst.php -----------------------------
+
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Common constants
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+	// Encoding modes
+	 
+	define('QR_MODE_NUL', -1);
+	define('QR_MODE_NUM', 0);
+	define('QR_MODE_AN', 1);
+	define('QR_MODE_8', 2);
+	define('QR_MODE_KANJI', 3);
+	define('QR_MODE_STRUCTURE', 4);
+
+	// Levels of error correction.
+
+	define('QR_ECLEVEL_L', 0);
+	define('QR_ECLEVEL_M', 1);
+	define('QR_ECLEVEL_Q', 2);
+	define('QR_ECLEVEL_H', 3);
+	
+	// Supported output formats
+	
+	define('QR_FORMAT_TEXT', 0);
+	define('QR_FORMAT_PNG',  1);
+	
+	class qrstr {
+		public static function set(&$srctab, $x, $y, $repl, $replLen = false) {
+			$srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
+		}
+	}	
+
+
+
+//---- merged_config.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Config file, tuned-up for merged verion
+ */
+     
+    define('QR_CACHEABLE', false);       // use cache - more disk reads but less CPU power, masks and format templates are stored there
+    define('QR_CACHE_DIR', false);       // used when QR_CACHEABLE === true
+    define('QR_LOG_DIR', false);         // default error logs dir   
+    
+    define('QR_FIND_BEST_MASK', true);                                                          // if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
+    define('QR_FIND_FROM_RANDOM', 2);                                                       // if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
+    define('QR_DEFAULT_MASK', 2);                                                               // when QR_FIND_BEST_MASK === false
+                                                  
+    define('QR_PNG_MAXIMUM_SIZE',  1024);                                                       // maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images
+                                                  
+
+
+
+//---- qrtools.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Toolset, handy and debug utilites.
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+    class QRtools {
+    
+        //----------------------------------------------------------------------
+        public static function binarize($frame)
+        {
+            $len = count($frame);
+            foreach ($frame as &$frameLine) {
+                
+                for($i=0; $i<$len; $i++) {
+                    $frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
+                }
+            }
+            
+            return $frame;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function tcpdfBarcodeArray($code, $mode = 'QR,L', $tcPdfVersion = '4.5.037')
+        {
+            $barcode_array = array();
+            
+            if (!is_array($mode))
+                $mode = explode(',', $mode);
+                
+            $eccLevel = 'L';
+                
+            if (count($mode) > 1) {
+                $eccLevel = $mode[1];
+            }
+                
+            $qrTab = QRcode::text($code, false, $eccLevel);
+            $size = count($qrTab);
+                
+            $barcode_array['num_rows'] = $size;
+            $barcode_array['num_cols'] = $size;
+            $barcode_array['bcode'] = array();
+                
+            foreach ($qrTab as $line) {
+                $arrAdd = array();
+                foreach(str_split($line) as $char)
+                    $arrAdd[] = ($char=='1')?1:0;
+                $barcode_array['bcode'][] = $arrAdd;
+            }
+                    
+            return $barcode_array;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function clearCache()
+        {
+            self::$frames = array();
+        }
+        
+        //----------------------------------------------------------------------
+        public static function buildCache()
+        {
+			QRtools::markTime('before_build_cache');
+			
+			$mask = new QRmask();
+            for ($a=1; $a <= QRSPEC_VERSION_MAX; $a++) {
+                $frame = QRspec::newFrame($a);
+                if (QR_IMAGE) {
+                    $fileName = QR_CACHE_DIR.'frame_'.$a.'.png';
+                    QRimage::png(self::binarize($frame), $fileName, 1, 0);
+                }
+				
+				$width = count($frame);
+				$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+				for ($maskNo=0; $maskNo<8; $maskNo++)
+					$mask->makeMaskNo($maskNo, $width, $frame, $bitMask, true);
+            }
+			
+			QRtools::markTime('after_build_cache');
+        }
+
+        //----------------------------------------------------------------------
+        public static function log($outfile, $err)
+        {
+            if (QR_LOG_DIR !== false) {
+                if ($err != '') {
+                    if ($outfile !== false) {
+                        file_put_contents(QR_LOG_DIR.basename($outfile).'-errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
+                    } else {
+                        file_put_contents(QR_LOG_DIR.'errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
+                    }
+                }    
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public static function dumpMask($frame) 
+        {
+            $width = count($frame);
+            for($y=0;$y<$width;$y++) {
+                for($x=0;$x<$width;$x++) {
+                    echo ord($frame[$y][$x]).',';
+                }
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public static function markTime($markerId)
+        {
+            list($usec, $sec) = explode(" ", microtime());
+            $time = ((float)$usec + (float)$sec);
+            
+            if (!isset($GLOBALS['qr_time_bench']))
+                $GLOBALS['qr_time_bench'] = array();
+            
+            $GLOBALS['qr_time_bench'][$markerId] = $time;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function timeBenchmark()
+        {
+            self::markTime('finish');
+        
+            $lastTime = 0;
+            $startTime = 0;
+            $p = 0;
+
+            echo '<table cellpadding="3" cellspacing="1">
+                    <thead><tr style="border-bottom:1px solid silver"><td colspan="2" style="text-align:center">BENCHMARK</td></tr></thead>
+                    <tbody>';
+
+            foreach($GLOBALS['qr_time_bench'] as $markerId=>$thisTime) {
+                if ($p > 0) {
+                    echo '<tr><th style="text-align:right">till '.$markerId.': </th><td>'.number_format($thisTime-$lastTime, 6).'s</td></tr>';
+                } else {
+                    $startTime = $thisTime;
+                }
+                
+                $p++;
+                $lastTime = $thisTime;
+            }
+            
+            echo '</tbody><tfoot>
+                <tr style="border-top:2px solid black"><th style="text-align:right">TOTAL: </th><td>'.number_format($lastTime-$startTime, 6).'s</td></tr>
+            </tfoot>
+            </table>';
+        }
+        
+    }
+    
+    //##########################################################################
+    
+    QRtools::markTime('start');
+    
+
+
+
+//---- qrspec.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * QR Code specifications
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * The following data / specifications are taken from
+ * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
+ *  or
+ * "Automatic identification and data capture techniques -- 
+ *  QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('QRSPEC_VERSION_MAX', 40);
+    define('QRSPEC_WIDTH_MAX',   177);
+
+    define('QRCAP_WIDTH',        0);
+    define('QRCAP_WORDS',        1);
+    define('QRCAP_REMINDER',     2);
+    define('QRCAP_EC',           3);
+
+    class QRspec {
+    
+        public static $capacity = array(
+            array(  0,    0, 0, array(   0,    0,    0,    0)),
+            array( 21,   26, 0, array(   7,   10,   13,   17)), // 1
+            array( 25,   44, 7, array(  10,   16,   22,   28)),
+            array( 29,   70, 7, array(  15,   26,   36,   44)),
+            array( 33,  100, 7, array(  20,   36,   52,   64)),
+            array( 37,  134, 7, array(  26,   48,   72,   88)), // 5
+            array( 41,  172, 7, array(  36,   64,   96,  112)),
+            array( 45,  196, 0, array(  40,   72,  108,  130)),
+            array( 49,  242, 0, array(  48,   88,  132,  156)),
+            array( 53,  292, 0, array(  60,  110,  160,  192)),
+            array( 57,  346, 0, array(  72,  130,  192,  224)), //10
+            array( 61,  404, 0, array(  80,  150,  224,  264)),
+            array( 65,  466, 0, array(  96,  176,  260,  308)),
+            array( 69,  532, 0, array( 104,  198,  288,  352)),
+            array( 73,  581, 3, array( 120,  216,  320,  384)),
+            array( 77,  655, 3, array( 132,  240,  360,  432)), //15
+            array( 81,  733, 3, array( 144,  280,  408,  480)),
+            array( 85,  815, 3, array( 168,  308,  448,  532)),
+            array( 89,  901, 3, array( 180,  338,  504,  588)),
+            array( 93,  991, 3, array( 196,  364,  546,  650)),
+            array( 97, 1085, 3, array( 224,  416,  600,  700)), //20
+            array(101, 1156, 4, array( 224,  442,  644,  750)),
+            array(105, 1258, 4, array( 252,  476,  690,  816)),
+            array(109, 1364, 4, array( 270,  504,  750,  900)),
+            array(113, 1474, 4, array( 300,  560,  810,  960)),
+            array(117, 1588, 4, array( 312,  588,  870, 1050)), //25
+            array(121, 1706, 4, array( 336,  644,  952, 1110)),
+            array(125, 1828, 4, array( 360,  700, 1020, 1200)),
+            array(129, 1921, 3, array( 390,  728, 1050, 1260)),
+            array(133, 2051, 3, array( 420,  784, 1140, 1350)),
+            array(137, 2185, 3, array( 450,  812, 1200, 1440)), //30
+            array(141, 2323, 3, array( 480,  868, 1290, 1530)),
+            array(145, 2465, 3, array( 510,  924, 1350, 1620)),
+            array(149, 2611, 3, array( 540,  980, 1440, 1710)),
+            array(153, 2761, 3, array( 570, 1036, 1530, 1800)),
+            array(157, 2876, 0, array( 570, 1064, 1590, 1890)), //35
+            array(161, 3034, 0, array( 600, 1120, 1680, 1980)),
+            array(165, 3196, 0, array( 630, 1204, 1770, 2100)),
+            array(169, 3362, 0, array( 660, 1260, 1860, 2220)),
+            array(173, 3532, 0, array( 720, 1316, 1950, 2310)),
+            array(177, 3706, 0, array( 750, 1372, 2040, 2430)) //40
+        );
+        
+        //----------------------------------------------------------------------
+        public static function getDataLength($version, $level)
+        {
+            return self::$capacity[$version][QRCAP_WORDS] - self::$capacity[$version][QRCAP_EC][$level];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getECCLength($version, $level)
+        {
+            return self::$capacity[$version][QRCAP_EC][$level];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getWidth($version)
+        {
+            return self::$capacity[$version][QRCAP_WIDTH];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getRemainder($version)
+        {
+            return self::$capacity[$version][QRCAP_REMINDER];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getMinimumVersion($size, $level)
+        {
+
+            for($i=1; $i<= QRSPEC_VERSION_MAX; $i++) {
+                $words  = self::$capacity[$i][QRCAP_WORDS] - self::$capacity[$i][QRCAP_EC][$level];
+                if($words >= $size) 
+                    return $i;
+            }
+
+            return -1;
+        }
+    
+        //######################################################################
+        
+        public static $lengthTableBits = array(
+            array(10, 12, 14),
+            array( 9, 11, 13),
+            array( 8, 16, 16),
+            array( 8, 10, 12)
+        );
+        
+        //----------------------------------------------------------------------
+        public static function lengthIndicator($mode, $version)
+        {
+            if ($mode == QR_MODE_STRUCTURE)
+                return 0;
+                
+            if ($version <= 9) {
+                $l = 0;
+            } else if ($version <= 26) {
+                $l = 1;
+            } else {
+                $l = 2;
+            }
+
+            return self::$lengthTableBits[$mode][$l];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function maximumWords($mode, $version)
+        {
+            if($mode == QR_MODE_STRUCTURE) 
+                return 3;
+                
+            if($version <= 9) {
+                $l = 0;
+            } else if($version <= 26) {
+                $l = 1;
+            } else {
+                $l = 2;
+            }
+
+            $bits = self::$lengthTableBits[$mode][$l];
+            $words = (1 << $bits) - 1;
+            
+            if($mode == QR_MODE_KANJI) {
+                $words *= 2; // the number of bytes is required
+            }
+
+            return $words;
+        }
+
+        // Error correction code -----------------------------------------------
+        // Table of the error correction code (Reed-Solomon block)
+        // See Table 12-16 (pp.30-36), JIS X0510:2004.
+
+        public static $eccTable = array(
+            array(array( 0,  0), array( 0,  0), array( 0,  0), array( 0,  0)),
+            array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)), // 1
+            array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)),
+            array(array( 1,  0), array( 1,  0), array( 2,  0), array( 2,  0)),
+            array(array( 1,  0), array( 2,  0), array( 2,  0), array( 4,  0)),
+            array(array( 1,  0), array( 2,  0), array( 2,  2), array( 2,  2)), // 5
+            array(array( 2,  0), array( 4,  0), array( 4,  0), array( 4,  0)),
+            array(array( 2,  0), array( 4,  0), array( 2,  4), array( 4,  1)),
+            array(array( 2,  0), array( 2,  2), array( 4,  2), array( 4,  2)),
+            array(array( 2,  0), array( 3,  2), array( 4,  4), array( 4,  4)),
+            array(array( 2,  2), array( 4,  1), array( 6,  2), array( 6,  2)), //10
+            array(array( 4,  0), array( 1,  4), array( 4,  4), array( 3,  8)),
+            array(array( 2,  2), array( 6,  2), array( 4,  6), array( 7,  4)),
+            array(array( 4,  0), array( 8,  1), array( 8,  4), array(12,  4)),
+            array(array( 3,  1), array( 4,  5), array(11,  5), array(11,  5)),
+            array(array( 5,  1), array( 5,  5), array( 5,  7), array(11,  7)), //15
+            array(array( 5,  1), array( 7,  3), array(15,  2), array( 3, 13)),
+            array(array( 1,  5), array(10,  1), array( 1, 15), array( 2, 17)),
+            array(array( 5,  1), array( 9,  4), array(17,  1), array( 2, 19)),
+            array(array( 3,  4), array( 3, 11), array(17,  4), array( 9, 16)),
+            array(array( 3,  5), array( 3, 13), array(15,  5), array(15, 10)), //20
+            array(array( 4,  4), array(17,  0), array(17,  6), array(19,  6)),
+            array(array( 2,  7), array(17,  0), array( 7, 16), array(34,  0)),
+            array(array( 4,  5), array( 4, 14), array(11, 14), array(16, 14)),
+            array(array( 6,  4), array( 6, 14), array(11, 16), array(30,  2)),
+            array(array( 8,  4), array( 8, 13), array( 7, 22), array(22, 13)), //25
+            array(array(10,  2), array(19,  4), array(28,  6), array(33,  4)),
+            array(array( 8,  4), array(22,  3), array( 8, 26), array(12, 28)),
+            array(array( 3, 10), array( 3, 23), array( 4, 31), array(11, 31)),
+            array(array( 7,  7), array(21,  7), array( 1, 37), array(19, 26)),
+            array(array( 5, 10), array(19, 10), array(15, 25), array(23, 25)), //30
+            array(array(13,  3), array( 2, 29), array(42,  1), array(23, 28)),
+            array(array(17,  0), array(10, 23), array(10, 35), array(19, 35)),
+            array(array(17,  1), array(14, 21), array(29, 19), array(11, 46)),
+            array(array(13,  6), array(14, 23), array(44,  7), array(59,  1)),
+            array(array(12,  7), array(12, 26), array(39, 14), array(22, 41)), //35
+            array(array( 6, 14), array( 6, 34), array(46, 10), array( 2, 64)),
+            array(array(17,  4), array(29, 14), array(49, 10), array(24, 46)),
+            array(array( 4, 18), array(13, 32), array(48, 14), array(42, 32)),
+            array(array(20,  4), array(40,  7), array(43, 22), array(10, 67)),
+            array(array(19,  6), array(18, 31), array(34, 34), array(20, 61)),//40
+        );                                                                       
+
+        //----------------------------------------------------------------------
+        // CACHEABLE!!!
+        
+        public static function getEccSpec($version, $level, array &$spec)
+        {
+            if (count($spec) < 5) {
+                $spec = array(0,0,0,0,0);
+            }
+
+            $b1   = self::$eccTable[$version][$level][0];
+            $b2   = self::$eccTable[$version][$level][1];
+            $data = self::getDataLength($version, $level);
+            $ecc  = self::getECCLength($version, $level);
+
+            if($b2 == 0) {
+                $spec[0] = $b1;
+                $spec[1] = (int)($data / $b1);
+                $spec[2] = (int)($ecc / $b1);
+                $spec[3] = 0; 
+                $spec[4] = 0;
+            } else {
+                $spec[0] = $b1;
+                $spec[1] = (int)($data / ($b1 + $b2));
+                $spec[2] = (int)($ecc  / ($b1 + $b2));
+                $spec[3] = $b2;
+                $spec[4] = $spec[1] + 1;
+            }
+        }
+
+        // Alignment pattern ---------------------------------------------------
+
+        // Positions of alignment patterns.
+        // This array includes only the second and the third position of the 
+        // alignment patterns. Rest of them can be calculated from the distance 
+        // between them.
+         
+        // See Table 1 in Appendix E (pp.71) of JIS X0510:2004.
+         
+        public static $alignmentPattern = array(      
+            array( 0,  0),
+            array( 0,  0), array(18,  0), array(22,  0), array(26,  0), array(30,  0), // 1- 5
+            array(34,  0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), // 6-10
+            array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), //11-15
+            array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), //16-20
+            array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), //21-25
+            array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), //26-30
+            array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), //31-35
+            array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58), //35-40
+        );                                                                                  
+
+        
+        /** --------------------------------------------------------------------
+         * Put an alignment marker.
+         * @param frame
+         * @param width
+         * @param ox,oy center coordinate of the pattern
+         */
+        public static function putAlignmentMarker(array &$frame, $ox, $oy)
+        {
+            $finder = array(
+                "\xa1\xa1\xa1\xa1\xa1",
+                "\xa1\xa0\xa0\xa0\xa1",
+                "\xa1\xa0\xa1\xa0\xa1",
+                "\xa1\xa0\xa0\xa0\xa1",
+                "\xa1\xa1\xa1\xa1\xa1"
+            );                        
+            
+            $yStart = $oy-2;         
+            $xStart = $ox-2;
+            
+            for($y=0; $y<5; $y++) {
+                QRstr::set($frame, $xStart, $yStart+$y, $finder[$y]);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function putAlignmentPattern($version, &$frame, $width)
+        {
+            if($version < 2)
+                return;
+
+            $d = self::$alignmentPattern[$version][1] - self::$alignmentPattern[$version][0];
+            if($d < 0) {
+                $w = 2;
+            } else {
+                $w = (int)(($width - self::$alignmentPattern[$version][0]) / $d + 2);
+            }
+
+            if($w * $w - 3 == 1) {
+                $x = self::$alignmentPattern[$version][0];
+                $y = self::$alignmentPattern[$version][0];
+                self::putAlignmentMarker($frame, $x, $y);
+                return;
+            }
+
+            $cx = self::$alignmentPattern[$version][0];
+            for($x=1; $x<$w - 1; $x++) {
+                self::putAlignmentMarker($frame, 6, $cx);
+                self::putAlignmentMarker($frame, $cx,  6);
+                $cx += $d;
+            }
+
+            $cy = self::$alignmentPattern[$version][0];
+            for($y=0; $y<$w-1; $y++) {
+                $cx = self::$alignmentPattern[$version][0];
+                for($x=0; $x<$w-1; $x++) {
+                    self::putAlignmentMarker($frame, $cx, $cy);
+                    $cx += $d;
+                }
+                $cy += $d;
+            }
+        }
+
+        // Version information pattern -----------------------------------------
+
+		// Version information pattern (BCH coded).
+        // See Table 1 in Appendix D (pp.68) of JIS X0510:2004.
+        
+		// size: [QRSPEC_VERSION_MAX - 6]
+		
+        public static $versionPattern = array(
+            0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d,
+            0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9,
+            0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75,
+            0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64,
+            0x27541, 0x28c69
+        );
+
+        //----------------------------------------------------------------------
+        public static function getVersionPattern($version)
+        {
+            if($version < 7 || $version > QRSPEC_VERSION_MAX)
+                return 0;
+
+            return self::$versionPattern[$version -7];
+        }
+
+        // Format information --------------------------------------------------
+        // See calcFormatInfo in tests/test_qrspec.c (orginal qrencode c lib)
+        
+        public static $formatInfo = array(
+            array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976),
+            array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0),
+            array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed),
+            array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b)
+        );
+
+        public static function getFormatInfo($mask, $level)
+        {
+            if($mask < 0 || $mask > 7)
+                return 0;
+                
+            if($level < 0 || $level > 3)
+                return 0;                
+
+            return self::$formatInfo[$level][$mask];
+        }
+
+        // Frame ---------------------------------------------------------------
+        // Cache of initial frames.
+         
+        public static $frames = array();
+
+        /** --------------------------------------------------------------------
+         * Put a finder pattern.
+         * @param frame
+         * @param width
+         * @param ox,oy upper-left coordinate of the pattern
+         */
+        public static function putFinderPattern(&$frame, $ox, $oy)
+        {
+            $finder = array(
+                "\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
+                "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+                "\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
+            );                            
+            
+            for($y=0; $y<7; $y++) {
+                QRstr::set($frame, $ox, $oy+$y, $finder[$y]);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function createFrame($version)
+        {
+            $width = self::$capacity[$version][QRCAP_WIDTH];
+            $frameLine = str_repeat ("\0", $width);
+            $frame = array_fill(0, $width, $frameLine);
+
+            // Finder pattern
+            self::putFinderPattern($frame, 0, 0);
+            self::putFinderPattern($frame, $width - 7, 0);
+            self::putFinderPattern($frame, 0, $width - 7);
+            
+            // Separator
+            $yOffset = $width - 7;
+            
+            for($y=0; $y<7; $y++) {
+                $frame[$y][7] = "\xc0";
+                $frame[$y][$width - 8] = "\xc0";
+                $frame[$yOffset][7] = "\xc0";
+                $yOffset++;
+            }
+            
+            $setPattern = str_repeat("\xc0", 8);
+            
+            QRstr::set($frame, 0, 7, $setPattern);
+            QRstr::set($frame, $width-8, 7, $setPattern);
+            QRstr::set($frame, 0, $width - 8, $setPattern);
+        
+            // Format info
+            $setPattern = str_repeat("\x84", 9);
+            QRstr::set($frame, 0, 8, $setPattern);
+            QRstr::set($frame, $width - 8, 8, $setPattern, 8);
+            
+            $yOffset = $width - 8;
+
+            for($y=0; $y<8; $y++,$yOffset++) {
+                $frame[$y][8] = "\x84";
+                $frame[$yOffset][8] = "\x84";
+            }
+
+            // Timing pattern  
+            
+            for($i=1; $i<$width-15; $i++) {
+                $frame[6][7+$i] = chr(0x90 | ($i & 1));
+                $frame[7+$i][6] = chr(0x90 | ($i & 1));
+            }
+            
+            // Alignment pattern  
+            self::putAlignmentPattern($version, $frame, $width);
+            
+            // Version information 
+            if($version >= 7) {
+                $vinf = self::getVersionPattern($version);
+
+                $v = $vinf;
+                
+                for($x=0; $x<6; $x++) {
+                    for($y=0; $y<3; $y++) {
+                        $frame[($width - 11)+$y][$x] = chr(0x88 | ($v & 1));
+                        $v = $v >> 1;
+                    }
+                }
+
+                $v = $vinf;
+                for($y=0; $y<6; $y++) {
+                    for($x=0; $x<3; $x++) {
+                        $frame[$y][$x+($width - 11)] = chr(0x88 | ($v & 1));
+                        $v = $v >> 1;
+                    }
+                }
+            }
+    
+            // and a little bit...  
+            $frame[$width - 8][8] = "\x81";
+            
+            return $frame;
+        }
+
+        //----------------------------------------------------------------------
+        public static function debug($frame, $binary_mode = false)
+        {
+            if ($binary_mode) {
+            
+                    foreach ($frame as &$frameLine) {
+                        $frameLine = join('<span class="m">&nbsp;&nbsp;</span>', explode('0', $frameLine));
+                        $frameLine = join('&#9608;&#9608;', explode('1', $frameLine));
+                    }
+                    
+                    ?>
+                <style>
+                    .m { background-color: white; }
+                </style>
+                <?php
+                    echo '<pre><tt><br/ ><br/ ><br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
+                    echo join("<br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;", $frame);
+                    echo '</tt></pre><br/ ><br/ ><br/ ><br/ ><br/ ><br/ >';
+            
+            } else {
+            
+                foreach ($frame as &$frameLine) {
+                    $frameLine = join('<span class="m">&nbsp;</span>',  explode("\xc0", $frameLine));
+                    $frameLine = join('<span class="m">&#9618;</span>', explode("\xc1", $frameLine));
+                    $frameLine = join('<span class="p">&nbsp;</span>',  explode("\xa0", $frameLine));
+                    $frameLine = join('<span class="p">&#9618;</span>', explode("\xa1", $frameLine));
+                    $frameLine = join('<span class="s">&#9671;</span>', explode("\x84", $frameLine)); //format 0
+                    $frameLine = join('<span class="s">&#9670;</span>', explode("\x85", $frameLine)); //format 1
+                    $frameLine = join('<span class="x">&#9762;</span>', explode("\x81", $frameLine)); //special bit
+                    $frameLine = join('<span class="c">&nbsp;</span>',  explode("\x90", $frameLine)); //clock 0
+                    $frameLine = join('<span class="c">&#9719;</span>', explode("\x91", $frameLine)); //clock 1
+                    $frameLine = join('<span class="f">&nbsp;</span>',  explode("\x88", $frameLine)); //version
+                    $frameLine = join('<span class="f">&#9618;</span>', explode("\x89", $frameLine)); //version
+                    $frameLine = join('&#9830;', explode("\x01", $frameLine));
+                    $frameLine = join('&#8901;', explode("\0", $frameLine));
+                }
+                
+                ?>
+                <style>
+                    .p { background-color: yellow; }
+                    .m { background-color: #00FF00; }
+                    .s { background-color: #FF0000; }
+                    .c { background-color: aqua; }
+                    .x { background-color: pink; }
+                    .f { background-color: gold; }
+                </style>
+                <?php
+                echo "<pre><tt>";
+                echo join("<br/ >", $frame);
+                echo "</tt></pre>";
+            
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function serial($frame)
+        {
+            return gzcompress(join("\n", $frame), 9);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function unserial($code)
+        {
+            return explode("\n", gzuncompress($code));
+        }
+        
+        //----------------------------------------------------------------------
+        public static function newFrame($version)
+        {
+            if($version < 1 || $version > QRSPEC_VERSION_MAX) 
+                return null;
+
+            if(!isset(self::$frames[$version])) {
+                
+                $fileName = QR_CACHE_DIR.'frame_'.$version.'.dat';
+                
+                if (QR_CACHEABLE) {
+                    if (file_exists($fileName)) {
+                        self::$frames[$version] = self::unserial(file_get_contents($fileName));
+                    } else {
+                        self::$frames[$version] = self::createFrame($version);
+                        file_put_contents($fileName, self::serial(self::$frames[$version]));
+                    }
+                } else {
+                    self::$frames[$version] = self::createFrame($version);
+                }
+            }
+            
+            if(is_null(self::$frames[$version]))
+                return null;
+
+            return self::$frames[$version];
+        }
+
+        //----------------------------------------------------------------------
+        public static function rsBlockNum($spec)     { return $spec[0] + $spec[3]; }
+        public static function rsBlockNum1($spec)    { return $spec[0]; }
+        public static function rsDataCodes1($spec)   { return $spec[1]; }
+        public static function rsEccCodes1($spec)    { return $spec[2]; }
+        public static function rsBlockNum2($spec)    { return $spec[3]; }
+        public static function rsDataCodes2($spec)   { return $spec[4]; }
+        public static function rsEccCodes2($spec)    { return $spec[2]; }
+        public static function rsDataLength($spec)   { return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);    }
+        public static function rsEccLength($spec)    { return ($spec[0] + $spec[3]) * $spec[2]; }
+        
+    }
+
+
+
+//---- qrimage.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Image output of code using GD2
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('QR_IMAGE', true);
+
+    class QRimage {
+    
+        //----------------------------------------------------------------------
+        public static function png($frame, $filename = false, $pixelPerPoint = 4, $outerFrame = 4,$saveandprint=FALSE) 
+        {
+            $image = self::image($frame, $pixelPerPoint, $outerFrame);
+            
+            if ($filename === false) {
+                Header("Content-type: image/png");
+                ImagePng($image);
+            } else {
+                if($saveandprint===TRUE){
+                    ImagePng($image, $filename);
+                    header("Content-type: image/png");
+                    ImagePng($image);
+                }else{
+                    ImagePng($image, $filename);
+                }
+            }
+            
+            ImageDestroy($image);
+        }
+    
+        //----------------------------------------------------------------------
+        public static function jpg($frame, $filename = false, $pixelPerPoint = 8, $outerFrame = 4, $q = 85) 
+        {
+            $image = self::image($frame, $pixelPerPoint, $outerFrame);
+            
+            if ($filename === false) {
+                Header("Content-type: image/jpeg");
+                ImageJpeg($image, null, $q);
+            } else {
+                ImageJpeg($image, $filename, $q);            
+            }
+            
+            ImageDestroy($image);
+        }
+    
+        //----------------------------------------------------------------------
+        private static function image($frame, $pixelPerPoint = 4, $outerFrame = 4) 
+        {
+            $h = count($frame);
+            $w = strlen($frame[0]);
+            
+            $imgW = $w + 2*$outerFrame;
+            $imgH = $h + 2*$outerFrame;
+            
+            $base_image =ImageCreate($imgW, $imgH);
+            
+            $col[0] = ImageColorAllocate($base_image,255,255,255);
+            $col[1] = ImageColorAllocate($base_image,0,0,0);
+
+            imagefill($base_image, 0, 0, $col[0]);
+
+            for($y=0; $y<$h; $y++) {
+                for($x=0; $x<$w; $x++) {
+                    if ($frame[$y][$x] == '1') {
+                        ImageSetPixel($base_image,$x+$outerFrame,$y+$outerFrame,$col[1]); 
+                    }
+                }
+            }
+            
+            $target_image =ImageCreate($imgW * $pixelPerPoint, $imgH * $pixelPerPoint);
+            ImageCopyResized($target_image, $base_image, 0, 0, 0, 0, $imgW * $pixelPerPoint, $imgH * $pixelPerPoint, $imgW, $imgH);
+            ImageDestroy($base_image);
+            
+            return $target_image;
+        }
+    }
+
+
+
+//---- qrinput.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Input encoding class
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('STRUCTURE_HEADER_BITS',  20);
+    define('MAX_STRUCTURED_SYMBOLS', 16);
+
+    class QRinputItem {
+    
+        public $mode;
+        public $size;
+        public $data;
+        public $bstream;
+
+        public function __construct($mode, $size, $data, $bstream = null) 
+        {
+            $setData = array_slice($data, 0, $size);
+            
+            if (count($setData) < $size) {
+                $setData = array_merge($setData, array_fill(0,$size-count($setData),0));
+            }
+        
+            if(!QRinput::check($mode, $size, $setData)) {
+                throw new Exception('Error m:'.$mode.',s:'.$size.',d:'.join(',',$setData));
+                return null;
+            }
+            
+            $this->mode = $mode;
+            $this->size = $size;
+            $this->data = $setData;
+            $this->bstream = $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeNum($version)
+        {
+            try {
+            
+                $words = (int)($this->size / 3);
+                $bs = new QRbitstream();
+                
+                $val = 0x1;
+                $bs->appendNum(4, $val);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_NUM, $version), $this->size);
+
+                for($i=0; $i<$words; $i++) {
+                    $val  = (ord($this->data[$i*3  ]) - ord('0')) * 100;
+                    $val += (ord($this->data[$i*3+1]) - ord('0')) * 10;
+                    $val += (ord($this->data[$i*3+2]) - ord('0'));
+                    $bs->appendNum(10, $val);
+                }
+
+                if($this->size - $words * 3 == 1) {
+                    $val = ord($this->data[$words*3]) - ord('0');
+                    $bs->appendNum(4, $val);
+                } else if($this->size - $words * 3 == 2) {
+                    $val  = (ord($this->data[$words*3  ]) - ord('0')) * 10;
+                    $val += (ord($this->data[$words*3+1]) - ord('0'));
+                    $bs->appendNum(7, $val);
+                }
+
+                $this->bstream = $bs;
+                return 0;
+                
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeAn($version)
+        {
+            try {
+                $words = (int)($this->size / 2);
+                $bs = new QRbitstream();
+                
+                $bs->appendNum(4, 0x02);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_AN, $version), $this->size);
+
+                for($i=0; $i<$words; $i++) {
+                    $val  = (int)QRinput::lookAnTable(ord($this->data[$i*2  ])) * 45;
+                    $val += (int)QRinput::lookAnTable(ord($this->data[$i*2+1]));
+
+                    $bs->appendNum(11, $val);
+                }
+
+                if($this->size & 1) {
+                    $val = QRinput::lookAnTable(ord($this->data[$words * 2]));
+                    $bs->appendNum(6, $val);
+                }
+        
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeMode8($version)
+        {
+            try {
+                $bs = new QRbitstream();
+
+                $bs->appendNum(4, 0x4);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_8, $version), $this->size);
+
+                for($i=0; $i<$this->size; $i++) {
+                    $bs->appendNum(8, ord($this->data[$i]));
+                }
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeKanji($version)
+        {
+            try {
+
+                $bs = new QRbitrtream();
+                
+                $bs->appendNum(4, 0x8);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_KANJI, $version), (int)($this->size / 2));
+
+                for($i=0; $i<$this->size; $i+=2) {
+                    $val = (ord($this->data[$i]) << 8) | ord($this->data[$i+1]);
+                    if($val <= 0x9ffc) {
+                        $val -= 0x8140;
+                    } else {
+                        $val -= 0xc140;
+                    }
+                    
+                    $h = ($val >> 8) * 0xc0;
+                    $val = ($val & 0xff) + $h;
+
+                    $bs->appendNum(13, $val);
+                }
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function encodeModeStructure()
+        {
+            try {
+                $bs =  new QRbitstream();
+                
+                $bs->appendNum(4, 0x03);
+                $bs->appendNum(4, ord($this->data[1]) - 1);
+                $bs->appendNum(4, ord($this->data[0]) - 1);
+                $bs->appendNum(8, ord($this->data[2]));
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateBitStreamSizeOfEntry($version)
+        {
+            $bits = 0;
+
+            if($version == 0) 
+                $version = 1;
+
+            switch($this->mode) {
+                case QR_MODE_NUM:        $bits = QRinput::estimateBitsModeNum($this->size);    break;
+                case QR_MODE_AN:        $bits = QRinput::estimateBitsModeAn($this->size);    break;
+                case QR_MODE_8:            $bits = QRinput::estimateBitsMode8($this->size);    break;
+                case QR_MODE_KANJI:        $bits = QRinput::estimateBitsModeKanji($this->size);break;
+                case QR_MODE_STRUCTURE:    return STRUCTURE_HEADER_BITS;            
+                default:
+                    return 0;
+            }
+
+            $l = QRspec::lengthIndicator($this->mode, $version);
+            $m = 1 << $l;
+            $num = (int)(($this->size + $m - 1) / $m);
+
+            $bits += $num * (4 + $l);
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeBitStream($version)
+        {
+            try {
+            
+                unset($this->bstream);
+                $words = QRspec::maximumWords($this->mode, $version);
+                
+                if($this->size > $words) {
+                
+                    $st1 = new QRinputItem($this->mode, $words, $this->data);
+                    $st2 = new QRinputItem($this->mode, $this->size - $words, array_slice($this->data, $words));
+
+                    $st1->encodeBitStream($version);
+                    $st2->encodeBitStream($version);
+                    
+                    $this->bstream = new QRbitstream();
+                    $this->bstream->append($st1->bstream);
+                    $this->bstream->append($st2->bstream);
+                    
+                    unset($st1);
+                    unset($st2);
+                    
+                } else {
+                    
+                    $ret = 0;
+                    
+                    switch($this->mode) {
+                        case QR_MODE_NUM:        $ret = $this->encodeModeNum($version);    break;
+                        case QR_MODE_AN:        $ret = $this->encodeModeAn($version);    break;
+                        case QR_MODE_8:            $ret = $this->encodeMode8($version);    break;
+                        case QR_MODE_KANJI:        $ret = $this->encodeModeKanji($version);break;
+                        case QR_MODE_STRUCTURE:    $ret = $this->encodeModeStructure();    break;
+                        
+                        default:
+                            break;
+                    }
+                    
+                    if($ret < 0)
+                        return -1;
+                }
+
+                return $this->bstream->size();
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+    };
+    
+    //##########################################################################
+
+    class QRinput {
+
+        public $items;
+        
+        private $version;
+        private $level;
+        
+        //----------------------------------------------------------------------
+        public function __construct($version = 0, $level = QR_ECLEVEL_L)
+        {
+            if ($version < 0 || $version > QRSPEC_VERSION_MAX || $level > QR_ECLEVEL_H) {
+                throw new Exception('Invalid version no');
+                return NULL;
+            }
+            
+            $this->version = $version;
+            $this->level = $level;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getVersion()
+        {
+            return $this->version;
+        }
+        
+        //----------------------------------------------------------------------
+        public function setVersion($version)
+        {
+            if($version < 0 || $version > QRSPEC_VERSION_MAX) {
+                throw new Exception('Invalid version no');
+                return -1;
+            }
+
+            $this->version = $version;
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getErrorCorrectionLevel()
+        {
+            return $this->level;
+        }
+
+        //----------------------------------------------------------------------
+        public function setErrorCorrectionLevel($level)
+        {
+            if($level > QR_ECLEVEL_H) {
+                throw new Exception('Invalid ECLEVEL');
+                return -1;
+            }
+
+            $this->level = $level;
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendEntry(QRinputItem $entry)
+        {
+            $this->items[] = $entry;
+        }
+        
+        //----------------------------------------------------------------------
+        public function append($mode, $size, $data)
+        {
+            try {
+                $entry = new QRinputItem($mode, $size, $data);
+                $this->items[] = $entry;
+                return 0;
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        
+        public function insertStructuredAppendHeader($size, $index, $parity)
+        {
+            if( $size > MAX_STRUCTURED_SYMBOLS ) {
+                throw new Exception('insertStructuredAppendHeader wrong size');
+            }
+            
+            if( $index <= 0 || $index > MAX_STRUCTURED_SYMBOLS ) {
+                throw new Exception('insertStructuredAppendHeader wrong index');
+            }
+
+            $buf = array($size, $index, $parity);
+            
+            try {
+                $entry = new QRinputItem(QR_MODE_STRUCTURE, 3, buf);
+                array_unshift($this->items, $entry);
+                return 0;
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function calcParity()
+        {
+            $parity = 0;
+            
+            foreach($this->items as $item) {
+                if($item->mode != QR_MODE_STRUCTURE) {
+                    for($i=$item->size-1; $i>=0; $i--) {
+                        $parity ^= $item->data[$i];
+                    }
+                }
+            }
+
+            return $parity;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeNum($size, $data)
+        {
+            for($i=0; $i<$size; $i++) {
+                if((ord($data[$i]) < ord('0')) || (ord($data[$i]) > ord('9'))){
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        //----------------------------------------------------------------------
+        public static function estimateBitsModeNum($size)
+        {
+            $w = (int)$size / 3;
+            $bits = $w * 10;
+            
+            switch($size - $w * 3) {
+                case 1:
+                    $bits += 4;
+                    break;
+                case 2:
+                    $bits += 7;
+                    break;
+                default:
+                    break;
+            }
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public static $anTable = array(
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43,
+             0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 44, -1, -1, -1, -1, -1,
+            -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+            25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+        );
+        
+        //----------------------------------------------------------------------
+        public static function lookAnTable($c)
+        {
+            return (($c > 127)?-1:self::$anTable[$c]);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeAn($size, $data)
+        {
+            for($i=0; $i<$size; $i++) {
+                if (self::lookAnTable(ord($data[$i])) == -1) {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function estimateBitsModeAn($size)
+        {
+            $w = (int)($size / 2);
+            $bits = $w * 11;
+            
+            if($size & 1) {
+                $bits += 6;
+            }
+
+            return $bits;
+        }
+    
+        //----------------------------------------------------------------------
+        public static function estimateBitsMode8($size)
+        {
+            return $size * 8;
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateBitsModeKanji($size)
+        {
+            return (int)(($size / 2) * 13);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeKanji($size, $data)
+        {
+            if($size & 1)
+                return false;
+
+            for($i=0; $i<$size; $i+=2) {
+                $val = (ord($data[$i]) << 8) | ord($data[$i+1]);
+                if( $val < 0x8140 
+                || ($val > 0x9ffc && $val < 0xe040) 
+                || $val > 0xebbf) {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        /***********************************************************************
+         * Validation
+         **********************************************************************/
+
+        public static function check($mode, $size, $data)
+        {
+            if($size <= 0) 
+                return false;
+
+            switch($mode) {
+                case QR_MODE_NUM:       return self::checkModeNum($size, $data);   break;
+                case QR_MODE_AN:        return self::checkModeAn($size, $data);    break;
+                case QR_MODE_KANJI:     return self::checkModeKanji($size, $data); break;
+                case QR_MODE_8:         return true; break;
+                case QR_MODE_STRUCTURE: return true; break;
+                
+                default:
+                    break;
+            }
+
+            return false;
+        }
+        
+        
+        //----------------------------------------------------------------------
+        public function estimateBitStreamSize($version)
+        {
+            $bits = 0;
+
+            foreach($this->items as $item) {
+                $bits += $item->estimateBitStreamSizeOfEntry($version);
+            }
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateVersion()
+        {
+            $version = 0;
+            $prev = 0;
+            do {
+                $prev = $version;
+                $bits = $this->estimateBitStreamSize($prev);
+                $version = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+                if ($version < 0) {
+                    return -1;
+                }
+            } while ($version > $prev);
+
+            return $version;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function lengthOfCode($mode, $version, $bits)
+        {
+            $payload = $bits - 4 - QRspec::lengthIndicator($mode, $version);
+            switch($mode) {
+                case QR_MODE_NUM:
+                    $chunks = (int)($payload / 10);
+                    $remain = $payload - $chunks * 10;
+                    $size = $chunks * 3;
+                    if($remain >= 7) {
+                        $size += 2;
+                    } else if($remain >= 4) {
+                        $size += 1;
+                    }
+                    break;
+                case QR_MODE_AN:
+                    $chunks = (int)($payload / 11);
+                    $remain = $payload - $chunks * 11;
+                    $size = $chunks * 2;
+                    if($remain >= 6) 
+                        $size++;
+                    break;
+                case QR_MODE_8:
+                    $size = (int)($payload / 8);
+                    break;
+                case QR_MODE_KANJI:
+                    $size = (int)(($payload / 13) * 2);
+                    break;
+                case QR_MODE_STRUCTURE:
+                    $size = (int)($payload / 8);
+                    break;
+                default:
+                    $size = 0;
+                    break;
+            }
+            
+            $maxsize = QRspec::maximumWords($mode, $version);
+            if($size < 0) $size = 0;
+            if($size > $maxsize) $size = $maxsize;
+
+            return $size;
+        }
+        
+        //----------------------------------------------------------------------
+        public function createBitStream()
+        {
+            $total = 0;
+
+            foreach($this->items as $item) {
+                $bits = $item->encodeBitStream($this->version);
+                
+                if($bits < 0) 
+                    return -1;
+                    
+                $total += $bits;
+            }
+
+            return $total;
+        }
+        
+        //----------------------------------------------------------------------
+        public function convertData()
+        {
+            $ver = $this->estimateVersion();
+            if($ver > $this->getVersion()) {
+                $this->setVersion($ver);
+            }
+
+            for(;;) {
+                $bits = $this->createBitStream();
+                
+                if($bits < 0) 
+                    return -1;
+                    
+                $ver = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+                if($ver < 0) {
+                    throw new Exception('WRONG VERSION');
+                    return -1;
+                } else if($ver > $this->getVersion()) {
+                    $this->setVersion($ver);
+                } else {
+                    break;
+                }
+            }
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendPaddingBit(&$bstream)
+        {
+            $bits = $bstream->size();
+            $maxwords = QRspec::getDataLength($this->version, $this->level);
+            $maxbits = $maxwords * 8;
+
+            if ($maxbits == $bits) {
+                return 0;
+            }
+
+            if ($maxbits - $bits < 5) {
+                return $bstream->appendNum($maxbits - $bits, 0);
+            }
+
+            $bits += 4;
+            $words = (int)(($bits + 7) / 8);
+
+            $padding = new QRbitstream();
+            $ret = $padding->appendNum($words * 8 - $bits + 4, 0);
+            
+            if($ret < 0) 
+                return $ret;
+
+            $padlen = $maxwords - $words;
+            
+            if($padlen > 0) {
+                
+                $padbuf = array();
+                for($i=0; $i<$padlen; $i++) {
+                    $padbuf[$i] = ($i&1)?0x11:0xec;
+                }
+                
+                $ret = $padding->appendBytes($padlen, $padbuf);
+                
+                if($ret < 0)
+                    return $ret;
+                
+            }
+
+            $ret = $bstream->append($padding);
+            
+            return $ret;
+        }
+
+        //----------------------------------------------------------------------
+        public function mergeBitStream()
+        {
+            if($this->convertData() < 0) {
+                return null;
+            }
+
+            $bstream = new QRbitstream();
+            
+            foreach($this->items as $item) {
+                $ret = $bstream->append($item->bstream);
+                if($ret < 0) {
+                    return null;
+                }
+            }
+
+            return $bstream;
+        }
+
+        //----------------------------------------------------------------------
+        public function getBitStream()
+        {
+
+            $bstream = $this->mergeBitStream();
+            
+            if($bstream == null) {
+                return null;
+            }
+            
+            $ret = $this->appendPaddingBit($bstream);
+            if($ret < 0) {
+                return null;
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getByteStream()
+        {
+            $bstream = $this->getBitStream();
+            if($bstream == null) {
+                return null;
+            }
+            
+            return $bstream->toByte();
+        }
+    }
+        
+        
+    
+
+
+
+//---- qrbitstream.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Bitstream class
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+     
+    class QRbitstream {
+    
+        public $data = array();
+        
+        //----------------------------------------------------------------------
+        public function size()
+        {
+            return count($this->data);
+        }
+        
+        //----------------------------------------------------------------------
+        public function allocate($setLength)
+        {
+            $this->data = array_fill(0, $setLength, 0);
+            return 0;
+        }
+    
+        //----------------------------------------------------------------------
+        public static function newFromNum($bits, $num)
+        {
+            $bstream = new QRbitstream();
+            $bstream->allocate($bits);
+            
+            $mask = 1 << ($bits - 1);
+            for($i=0; $i<$bits; $i++) {
+                if($num & $mask) {
+                    $bstream->data[$i] = 1;
+                } else {
+                    $bstream->data[$i] = 0;
+                }
+                $mask = $mask >> 1;
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function newFromBytes($size, $data)
+        {
+            $bstream = new QRbitstream();
+            $bstream->allocate($size * 8);
+            $p=0;
+
+            for($i=0; $i<$size; $i++) {
+                $mask = 0x80;
+                for($j=0; $j<8; $j++) {
+                    if($data[$i] & $mask) {
+                        $bstream->data[$p] = 1;
+                    } else {
+                        $bstream->data[$p] = 0;
+                    }
+                    $p++;
+                    $mask = $mask >> 1;
+                }
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function append(QRbitstream $arg)
+        {
+            if (is_null($arg)) {
+                return -1;
+            }
+            
+            if($arg->size() == 0) {
+                return 0;
+            }
+            
+            if($this->size() == 0) {
+                $this->data = $arg->data;
+                return 0;
+            }
+            
+            $this->data = array_values(array_merge($this->data, $arg->data));
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendNum($bits, $num)
+        {
+            if ($bits == 0) 
+                return 0;
+
+            $b = QRbitstream::newFromNum($bits, $num);
+            
+            if(is_null($b))
+                return -1;
+
+            $ret = $this->append($b);
+            unset($b);
+
+            return $ret;
+        }
+
+        //----------------------------------------------------------------------
+        public function appendBytes($size, $data)
+        {
+            if ($size == 0) 
+                return 0;
+
+            $b = QRbitstream::newFromBytes($size, $data);
+            
+            if(is_null($b))
+                return -1;
+
+            $ret = $this->append($b);
+            unset($b);
+
+            return $ret;
+        }
+        
+        //----------------------------------------------------------------------
+        public function toByte()
+        {
+        
+            $size = $this->size();
+
+            if($size == 0) {
+                return array();
+            }
+            
+            $data = array_fill(0, (int)(($size + 7) / 8), 0);
+            $bytes = (int)($size / 8);
+
+            $p = 0;
+            
+            for($i=0; $i<$bytes; $i++) {
+                $v = 0;
+                for($j=0; $j<8; $j++) {
+                    $v = $v << 1;
+                    $v |= $this->data[$p];
+                    $p++;
+                }
+                $data[$i] = $v;
+            }
+            
+            if($size & 7) {
+                $v = 0;
+                for($j=0; $j<($size & 7); $j++) {
+                    $v = $v << 1;
+                    $v |= $this->data[$p];
+                    $p++;
+                }
+                $data[$bytes] = $v;
+            }
+
+            return $data;
+        }
+
+    }
+
+
+
+
+//---- qrsplit.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Input splitting classes
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * The following data / specifications are taken from
+ * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
+ *  or
+ * "Automatic identification and data capture techniques -- 
+ *  QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+    class QRsplit {
+
+        public $dataStr = '';
+        public $input;
+        public $modeHint;
+
+        //----------------------------------------------------------------------
+        public function __construct($dataStr, $input, $modeHint) 
+        {
+            $this->dataStr  = $dataStr;
+            $this->input    = $input;
+            $this->modeHint = $modeHint;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function isdigitat($str, $pos)
+        {    
+            if ($pos >= strlen($str))
+                return false;
+            
+            return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
+        }
+        
+        //----------------------------------------------------------------------
+        public static function isalnumat($str, $pos)
+        {
+            if ($pos >= strlen($str))
+                return false;
+                
+            return (QRinput::lookAnTable(ord($str[$pos])) >= 0);
+        }
+
+        //----------------------------------------------------------------------
+        public function identifyMode($pos)
+        {
+            if ($pos >= strlen($this->dataStr)) 
+                return QR_MODE_NUL;
+                
+            $c = $this->dataStr[$pos];
+            
+            if(self::isdigitat($this->dataStr, $pos)) {
+                return QR_MODE_NUM;
+            } else if(self::isalnumat($this->dataStr, $pos)) {
+                return QR_MODE_AN;
+            } else if($this->modeHint == QR_MODE_KANJI) {
+            
+                if ($pos+1 < strlen($this->dataStr)) 
+                {
+                    $d = $this->dataStr[$pos+1];
+                    $word = (ord($c) << 8) | ord($d);
+                    if(($word >= 0x8140 && $word <= 0x9ffc) || ($word >= 0xe040 && $word <= 0xebbf)) {
+                        return QR_MODE_KANJI;
+                    }
+                }
+            }
+
+            return QR_MODE_8;
+        } 
+        
+        //----------------------------------------------------------------------
+        public function eatNum()
+        {
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 0;
+            while(self::isdigitat($this->dataStr, $p)) {
+                $p++;
+            }
+            
+            $run = $p;
+            $mode = $this->identifyMode($p);
+            
+            if($mode == QR_MODE_8) {
+                $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
+                     + QRinput::estimateBitsMode8(1)         // + 4 + l8
+                     - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
+                if($dif > 0) {
+                    return $this->eat8();
+                }
+            }
+            if($mode == QR_MODE_AN) {
+                $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
+                     + QRinput::estimateBitsModeAn(1)        // + 4 + la
+                     - QRinput::estimateBitsModeAn($run + 1);// - 4 - la
+                if($dif > 0) {
+                    return $this->eatAn();
+                }
+            }
+            
+            $ret = $this->input->append(QR_MODE_NUM, $run, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+        
+        //----------------------------------------------------------------------
+        public function eatAn()
+        {
+            $la = QRspec::lengthIndicator(QR_MODE_AN,  $this->input->getVersion());
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 0;
+            
+            while(self::isalnumat($this->dataStr, $p)) {
+                if(self::isdigitat($this->dataStr, $p)) {
+                    $q = $p;
+                    while(self::isdigitat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    
+                    $dif = QRinput::estimateBitsModeAn($p) // + 4 + la
+                         + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
+                         - QRinput::estimateBitsModeAn($q); // - 4 - la
+                         
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else {
+                    $p++;
+                }
+            }
+
+            $run = $p;
+
+            if(!self::isalnumat($this->dataStr, $p)) {
+                $dif = QRinput::estimateBitsModeAn($run) + 4 + $la
+                     + QRinput::estimateBitsMode8(1) // + 4 + l8
+                      - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
+                if($dif > 0) {
+                    return $this->eat8();
+                }
+            }
+
+            $ret = $this->input->append(QR_MODE_AN, $run, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+        
+        //----------------------------------------------------------------------
+        public function eatKanji()
+        {
+            $p = 0;
+            
+            while($this->identifyMode($p) == QR_MODE_KANJI) {
+                $p += 2;
+            }
+            
+            $ret = $this->input->append(QR_MODE_KANJI, $p, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+
+        //----------------------------------------------------------------------
+        public function eat8()
+        {
+            $la = QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 1;
+            $dataStrLen = strlen($this->dataStr);
+            
+            while($p < $dataStrLen) {
+                
+                $mode = $this->identifyMode($p);
+                if($mode == QR_MODE_KANJI) {
+                    break;
+                }
+                if($mode == QR_MODE_NUM) {
+                    $q = $p;
+                    while(self::isdigitat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    $dif = QRinput::estimateBitsMode8($p) // + 4 + l8
+                         + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
+                         - QRinput::estimateBitsMode8($q); // - 4 - l8
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else if($mode == QR_MODE_AN) {
+                    $q = $p;
+                    while(self::isalnumat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    $dif = QRinput::estimateBitsMode8($p)  // + 4 + l8
+                         + QRinput::estimateBitsModeAn($q - $p) + 4 + $la
+                         - QRinput::estimateBitsMode8($q); // - 4 - l8
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else {
+                    $p++;
+                }
+            }
+
+            $run = $p;
+            $ret = $this->input->append(QR_MODE_8, $run, str_split($this->dataStr));
+            
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+
+        //----------------------------------------------------------------------
+        public function splitString()
+        {
+            while (strlen($this->dataStr) > 0)
+            {
+                if($this->dataStr == '')
+                    return 0;
+
+                $mode = $this->identifyMode(0);
+                
+                switch ($mode) {
+                    case QR_MODE_NUM: $length = $this->eatNum(); break;
+                    case QR_MODE_AN:  $length = $this->eatAn(); break;
+                    case QR_MODE_KANJI:
+                        if ($hint == QR_MODE_KANJI)
+                                $length = $this->eatKanji();
+                        else    $length = $this->eat8();
+                        break;
+                    default: $length = $this->eat8(); break;
+                
+                }
+
+                if($length == 0) return 0;
+                if($length < 0)  return -1;
+                
+                $this->dataStr = substr($this->dataStr, $length);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function toUpper()
+        {
+            $stringLen = strlen($this->dataStr);
+            $p = 0;
+            
+            while ($p<$stringLen) {
+                $mode = self::identifyMode(substr($this->dataStr, $p), $this->modeHint);
+                if($mode == QR_MODE_KANJI) {
+                    $p += 2;
+                } else {
+                    if (ord($this->dataStr[$p]) >= ord('a') && ord($this->dataStr[$p]) <= ord('z')) {
+                        $this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
+                    }
+                    $p++;
+                }
+            }
+
+            return $this->dataStr;
+        }
+
+        //----------------------------------------------------------------------
+        public static function splitStringToQRinput($string, QRinput $input, $modeHint, $casesensitive = true)
+        {
+            if(is_null($string) || $string == '\0' || $string == '') {
+                throw new Exception('empty string!!!');
+            }
+
+            $split = new QRsplit($string, $input, $modeHint);
+            
+            if(!$casesensitive)
+                $split->toUpper();
+                
+            return $split->splitString();
+        }
+    }
+
+
+
+//---- qrrscode.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Reed-Solomon error correction support
+ * 
+ * Copyright (C) 2002, 2003, 2004, 2006 Phil Karn, KA9Q
+ * (libfec is released under the GNU Lesser General Public License.)
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    class QRrsItem {
+    
+        public $mm;                  // Bits per symbol 
+        public $nn;                  // Symbols per block (= (1<<mm)-1) 
+        public $alpha_to = array();  // log lookup table 
+        public $index_of = array();  // Antilog lookup table 
+        public $genpoly = array();   // Generator polynomial 
+        public $nroots;              // Number of generator roots = number of parity symbols 
+        public $fcr;                 // First consecutive root, index form 
+        public $prim;                // Primitive element, index form 
+        public $iprim;               // prim-th root of 1, index form 
+        public $pad;                 // Padding bytes in shortened block 
+        public $gfpoly;
+    
+        //----------------------------------------------------------------------
+        public function modnn($x)
+        {
+            while ($x >= $this->nn) {
+                $x -= $this->nn;
+                $x = ($x >> $this->mm) + ($x & $this->nn);
+            }
+            
+            return $x;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
+        {
+            // Common code for intializing a Reed-Solomon control block (char or int symbols)
+            // Copyright 2004 Phil Karn, KA9Q
+            // May be used under the terms of the GNU Lesser General Public License (LGPL)
+
+            $rs = null;
+            
+            // Check parameter ranges
+            if($symsize < 0 || $symsize > 8)                     return $rs;
+            if($fcr < 0 || $fcr >= (1<<$symsize))                return $rs;
+            if($prim <= 0 || $prim >= (1<<$symsize))             return $rs;
+            if($nroots < 0 || $nroots >= (1<<$symsize))          return $rs; // Can't have more roots than symbol values!
+            if($pad < 0 || $pad >= ((1<<$symsize) -1 - $nroots)) return $rs; // Too much padding
+
+            $rs = new QRrsItem();
+            $rs->mm = $symsize;
+            $rs->nn = (1<<$symsize)-1;
+            $rs->pad = $pad;
+
+            $rs->alpha_to = array_fill(0, $rs->nn+1, 0);
+            $rs->index_of = array_fill(0, $rs->nn+1, 0);
+          
+            // PHP style macro replacement ;)
+            $NN =& $rs->nn;
+            $A0 =& $NN;
+            
+            // Generate Galois field lookup tables
+            $rs->index_of[0] = $A0; // log(zero) = -inf
+            $rs->alpha_to[$A0] = 0; // alpha**-inf = 0
+            $sr = 1;
+          
+            for($i=0; $i<$rs->nn; $i++) {
+                $rs->index_of[$sr] = $i;
+                $rs->alpha_to[$i] = $sr;
+                $sr <<= 1;
+                if($sr & (1<<$symsize)) {
+                    $sr ^= $gfpoly;
+                }
+                $sr &= $rs->nn;
+            }
+            
+            if($sr != 1){
+                // field generator polynomial is not primitive!
+                $rs = NULL;
+                return $rs;
+            }
+
+            /* Form RS code generator polynomial from its roots */
+            $rs->genpoly = array_fill(0, $nroots+1, 0);
+        
+            $rs->fcr = $fcr;
+            $rs->prim = $prim;
+            $rs->nroots = $nroots;
+            $rs->gfpoly = $gfpoly;
+
+            /* Find prim-th root of 1, used in decoding */
+            for($iprim=1;($iprim % $prim) != 0;$iprim += $rs->nn)
+            ; // intentional empty-body loop!
+            
+            $rs->iprim = (int)($iprim / $prim);
+            $rs->genpoly[0] = 1;
+            
+            for ($i = 0,$root=$fcr*$prim; $i < $nroots; $i++, $root += $prim) {
+                $rs->genpoly[$i+1] = 1;
+
+                // Multiply rs->genpoly[] by  @**(root + x)
+                for ($j = $i; $j > 0; $j--) {
+                    if ($rs->genpoly[$j] != 0) {
+                        $rs->genpoly[$j] = $rs->genpoly[$j-1] ^ $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[$j]] + $root)];
+                    } else {
+                        $rs->genpoly[$j] = $rs->genpoly[$j-1];
+                    }
+                }
+                // rs->genpoly[0] can never be zero
+                $rs->genpoly[0] = $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[0]] + $root)];
+            }
+            
+            // convert rs->genpoly[] to index form for quicker encoding
+            for ($i = 0; $i <= $nroots; $i++)
+                $rs->genpoly[$i] = $rs->index_of[$rs->genpoly[$i]];
+
+            return $rs;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encode_rs_char($data, &$parity)
+        {
+            $MM       =& $this->mm;
+            $NN       =& $this->nn;
+            $ALPHA_TO =& $this->alpha_to;
+            $INDEX_OF =& $this->index_of;
+            $GENPOLY  =& $this->genpoly;
+            $NROOTS   =& $this->nroots;
+            $FCR      =& $this->fcr;
+            $PRIM     =& $this->prim;
+            $IPRIM    =& $this->iprim;
+            $PAD      =& $this->pad;
+            $A0       =& $NN;
+
+            $parity = array_fill(0, $NROOTS, 0);
+
+            for($i=0; $i< ($NN-$NROOTS-$PAD); $i++) {
+                
+                $feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
+                if($feedback != $A0) {      
+                    // feedback term is non-zero
+            
+                    // This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
+                    // always be for the polynomials constructed by init_rs()
+                    $feedback = $this->modnn($NN - $GENPOLY[$NROOTS] + $feedback);
+            
+                    for($j=1;$j<$NROOTS;$j++) {
+                        $parity[$j] ^= $ALPHA_TO[$this->modnn($feedback + $GENPOLY[$NROOTS-$j])];
+                    }
+                }
+                
+                // Shift 
+                array_shift($parity);
+                if($feedback != $A0) {
+                    array_push($parity, $ALPHA_TO[$this->modnn($feedback + $GENPOLY[0])]);
+                } else {
+                    array_push($parity, 0);
+                }
+            }
+        }
+    }
+    
+    //##########################################################################
+    
+    class QRrs {
+    
+        public static $items = array();
+        
+        //----------------------------------------------------------------------
+        public static function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
+        {
+            foreach(self::$items as $rs) {
+                if($rs->pad != $pad)       continue;
+                if($rs->nroots != $nroots) continue;
+                if($rs->mm != $symsize)    continue;
+                if($rs->gfpoly != $gfpoly) continue;
+                if($rs->fcr != $fcr)       continue;
+                if($rs->prim != $prim)     continue;
+
+                return $rs;
+            }
+
+            $rs = QRrsItem::init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
+            array_unshift(self::$items, $rs);
+
+            return $rs;
+        }
+    }
+
+
+
+//---- qrmask.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Masking
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+	define('N1', 3);
+	define('N2', 3);
+	define('N3', 40);
+	define('N4', 10);
+
+	class QRmask {
+	
+		public $runLength = array();
+		
+		//----------------------------------------------------------------------
+		public function __construct() 
+        {
+            $this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
+        }
+        
+        //----------------------------------------------------------------------
+        public function writeFormatInformation($width, &$frame, $mask, $level)
+        {
+            $blacks = 0;
+            $format =  QRspec::getFormatInfo($mask, $level);
+
+            for($i=0; $i<8; $i++) {
+                if($format & 1) {
+                    $blacks += 2;
+                    $v = 0x85;
+                } else {
+                    $v = 0x84;
+                }
+                
+                $frame[8][$width - 1 - $i] = chr($v);
+                if($i < 6) {
+                    $frame[$i][8] = chr($v);
+                } else {
+                    $frame[$i + 1][8] = chr($v);
+                }
+                $format = $format >> 1;
+            }
+            
+            for($i=0; $i<7; $i++) {
+                if($format & 1) {
+                    $blacks += 2;
+                    $v = 0x85;
+                } else {
+                    $v = 0x84;
+                }
+                
+                $frame[$width - 7 + $i][8] = chr($v);
+                if($i == 0) {
+                    $frame[8][7] = chr($v);
+                } else {
+                    $frame[8][6 - $i] = chr($v);
+                }
+                
+                $format = $format >> 1;
+            }
+
+            return $blacks;
+        }
+        
+        //----------------------------------------------------------------------
+        public function mask0($x, $y) { return ($x+$y)&1;                       }
+        public function mask1($x, $y) { return ($y&1);                          }
+        public function mask2($x, $y) { return ($x%3);                          }
+        public function mask3($x, $y) { return ($x+$y)%3;                       }
+        public function mask4($x, $y) { return (((int)($y/2))+((int)($x/3)))&1; }
+        public function mask5($x, $y) { return (($x*$y)&1)+($x*$y)%3;           }
+        public function mask6($x, $y) { return ((($x*$y)&1)+($x*$y)%3)&1;       }
+        public function mask7($x, $y) { return ((($x*$y)%3)+(($x+$y)&1))&1;     }
+        
+        //----------------------------------------------------------------------
+        private function generateMaskNo($maskNo, $width, $frame)
+        {
+            $bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+            
+            for($y=0; $y<$width; $y++) {
+                for($x=0; $x<$width; $x++) {
+                    if(ord($frame[$y][$x]) & 0x80) {
+                        $bitMask[$y][$x] = 0;
+                    } else {
+                        $maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
+                        $bitMask[$y][$x] = ($maskFunc == 0)?1:0;
+                    }
+                    
+                }
+            }
+            
+            return $bitMask;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function serial($bitFrame)
+        {
+            $codeArr = array();
+            
+            foreach ($bitFrame as $line)
+                $codeArr[] = join('', $line);
+                
+            return gzcompress(join("\n", $codeArr), 9);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function unserial($code)
+        {
+            $codeArr = array();
+            
+            $codeLines = explode("\n", gzuncompress($code));
+            foreach ($codeLines as $line)
+                $codeArr[] = str_split($line);
+            
+            return $codeArr;
+        }
+        
+        //----------------------------------------------------------------------
+        public function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly = false) 
+        {
+            $b = 0;
+            $bitMask = array();
+            
+            $fileName = QR_CACHE_DIR.'mask_'.$maskNo.DIRECTORY_SEPARATOR.'mask_'.$width.'_'.$maskNo.'.dat';
+
+            if (QR_CACHEABLE) {
+                if (file_exists($fileName)) {
+                    $bitMask = self::unserial(file_get_contents($fileName));
+                } else {
+                    $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
+                    if (!file_exists(QR_CACHE_DIR.'mask_'.$maskNo))
+                        mkdir(QR_CACHE_DIR.'mask_'.$maskNo);
+                    file_put_contents($fileName, self::serial($bitMask));
+                }
+            } else {
+                $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
+            }
+
+            if ($maskGenOnly)
+                return;
+                
+            $d = $s;
+
+            for($y=0; $y<$width; $y++) {
+                for($x=0; $x<$width; $x++) {
+                    if($bitMask[$y][$x] == 1) {
+                        $d[$y][$x] = chr(ord($s[$y][$x]) ^ (int)$bitMask[$y][$x]);
+                    }
+                    $b += (int)(ord($d[$y][$x]) & 1);
+                }
+            }
+
+            return $b;
+        }
+        
+        //----------------------------------------------------------------------
+        public function makeMask($width, $frame, $maskNo, $level)
+        {
+            $masked = array_fill(0, $width, str_repeat("\0", $width));
+            $this->makeMaskNo($maskNo, $width, $frame, $masked);
+            $this->writeFormatInformation($width, $masked, $maskNo, $level);
+       
+            return $masked;
+        }
+        
+        //----------------------------------------------------------------------
+        public function calcN1N3($length)
+        {
+            $demerit = 0;
+
+            for($i=0; $i<$length; $i++) {
+                
+                if($this->runLength[$i] >= 5) {
+                    $demerit += (N1 + ($this->runLength[$i] - 5));
+                }
+                if($i & 1) {
+                    if(($i >= 3) && ($i < ($length-2)) && ($this->runLength[$i] % 3 == 0)) {
+                        $fact = (int)($this->runLength[$i] / 3);
+                        if(($this->runLength[$i-2] == $fact) &&
+                           ($this->runLength[$i-1] == $fact) &&
+                           ($this->runLength[$i+1] == $fact) &&
+                           ($this->runLength[$i+2] == $fact)) {
+                            if(($this->runLength[$i-3] < 0) || ($this->runLength[$i-3] >= (4 * $fact))) {
+                                $demerit += N3;
+                            } else if((($i+3) >= $length) || ($this->runLength[$i+3] >= (4 * $fact))) {
+                                $demerit += N3;
+                            }
+                        }
+                    }
+                }
+            }
+            return $demerit;
+        }
+        
+        //----------------------------------------------------------------------
+        public function evaluateSymbol($width, $frame)
+        {
+            $head = 0;
+            $demerit = 0;
+
+            for($y=0; $y<$width; $y++) {
+                $head = 0;
+                $this->runLength[0] = 1;
+                
+                $frameY = $frame[$y];
+                
+                if ($y>0)
+                    $frameYM = $frame[$y-1];
+                
+                for($x=0; $x<$width; $x++) {
+                    if(($x > 0) && ($y > 0)) {
+                        $b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]);
+                        $w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]);
+                        
+                        if(($b22 | ($w22 ^ 1))&1) {                                                                     
+                            $demerit += N2;
+                        }
+                    }
+                    if(($x == 0) && (ord($frameY[$x]) & 1)) {
+                        $this->runLength[0] = -1;
+                        $head = 1;
+                        $this->runLength[$head] = 1;
+                    } else if($x > 0) {
+                        if((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) {
+                            $head++;
+                            $this->runLength[$head] = 1;
+                        } else {
+                            $this->runLength[$head]++;
+                        }
+                    }
+                }
+    
+                $demerit += $this->calcN1N3($head+1);
+            }
+
+            for($x=0; $x<$width; $x++) {
+                $head = 0;
+                $this->runLength[0] = 1;
+                
+                for($y=0; $y<$width; $y++) {
+                    if($y == 0 && (ord($frame[$y][$x]) & 1)) {
+                        $this->runLength[0] = -1;
+                        $head = 1;
+                        $this->runLength[$head] = 1;
+                    } else if($y > 0) {
+                        if((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) {
+                            $head++;
+                            $this->runLength[$head] = 1;
+                        } else {
+                            $this->runLength[$head]++;
+                        }
+                    }
+                }
+            
+                $demerit += $this->calcN1N3($head+1);
+            }
+
+            return $demerit;
+        }
+        
+        
+        //----------------------------------------------------------------------
+        public function mask($width, $frame, $level)
+        {
+            $minDemerit = PHP_INT_MAX;
+            $bestMaskNum = 0;
+            $bestMask = array();
+            
+            $checked_masks = array(0,1,2,3,4,5,6,7);
+            
+            if (QR_FIND_FROM_RANDOM !== false) {
+            
+                $howManuOut = 8-(QR_FIND_FROM_RANDOM % 9);
+                for ($i = 0; $i <  $howManuOut; $i++) {
+                    $remPos = rand (0, count($checked_masks)-1);
+                    unset($checked_masks[$remPos]);
+                    $checked_masks = array_values($checked_masks);
+                }
+            
+            }
+            
+            $bestMask = $frame;
+             
+            foreach($checked_masks as $i) {
+                $mask = array_fill(0, $width, str_repeat("\0", $width));
+
+                $demerit = 0;
+                $blacks = 0;
+                $blacks  = $this->makeMaskNo($i, $width, $frame, $mask);
+                $blacks += $this->writeFormatInformation($width, $mask, $i, $level);
+                $blacks  = (int)(100 * $blacks / ($width * $width));
+                $demerit = (int)((int)(abs($blacks - 50) / 5) * N4);
+                $demerit += $this->evaluateSymbol($width, $mask);
+                
+                if($demerit < $minDemerit) {
+                    $minDemerit = $demerit;
+                    $bestMask = $mask;
+                    $bestMaskNum = $i;
+                }
+            }
+            
+            return $bestMask;
+        }
+        
+        //----------------------------------------------------------------------
+    }
+
+
+
+
+//---- qrencode.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Main encoder classes.
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    class QRrsblock {
+        public $dataLength;
+        public $data = array();
+        public $eccLength;
+        public $ecc = array();
+        
+        public function __construct($dl, $data, $el, &$ecc, QRrsItem $rs)
+        {
+            $rs->encode_rs_char($data, $ecc);
+        
+            $this->dataLength = $dl;
+            $this->data = $data;
+            $this->eccLength = $el;
+            $this->ecc = $ecc;
+        }
+    };
+    
+    //##########################################################################
+
+    class QRrawcode {
+        public $version;
+        public $datacode = array();
+        public $ecccode = array();
+        public $blocks;
+        public $rsblocks = array(); //of RSblock
+        public $count;
+        public $dataLength;
+        public $eccLength;
+        public $b1;
+        
+        //----------------------------------------------------------------------
+        public function __construct(QRinput $input)
+        {
+            $spec = array(0,0,0,0,0);
+            
+            $this->datacode = $input->getByteStream();
+            if(is_null($this->datacode)) {
+                throw new Exception('null imput string');
+            }
+
+            QRspec::getEccSpec($input->getVersion(), $input->getErrorCorrectionLevel(), $spec);
+
+            $this->version = $input->getVersion();
+            $this->b1 = QRspec::rsBlockNum1($spec);
+            $this->dataLength = QRspec::rsDataLength($spec);
+            $this->eccLength = QRspec::rsEccLength($spec);
+            $this->ecccode = array_fill(0, $this->eccLength, 0);
+            $this->blocks = QRspec::rsBlockNum($spec);
+            
+            $ret = $this->init($spec);
+            if($ret < 0) {
+                throw new Exception('block alloc error');
+                return null;
+            }
+
+            $this->count = 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function init(array $spec)
+        {
+            $dl = QRspec::rsDataCodes1($spec);
+            $el = QRspec::rsEccCodes1($spec);
+            $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+            
+
+            $blockNo = 0;
+            $dataPos = 0;
+            $eccPos = 0;
+            for($i=0; $i<QRspec::rsBlockNum1($spec); $i++) {
+                $ecc = array_slice($this->ecccode,$eccPos);
+                $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el,  $ecc, $rs);
+                $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
+                
+                $dataPos += $dl;
+                $eccPos += $el;
+                $blockNo++;
+            }
+
+            if(QRspec::rsBlockNum2($spec) == 0)
+                return 0;
+
+            $dl = QRspec::rsDataCodes2($spec);
+            $el = QRspec::rsEccCodes2($spec);
+            $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+            
+            if($rs == NULL) return -1;
+            
+            for($i=0; $i<QRspec::rsBlockNum2($spec); $i++) {
+                $ecc = array_slice($this->ecccode,$eccPos);
+                $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
+                $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
+                
+                $dataPos += $dl;
+                $eccPos += $el;
+                $blockNo++;
+            }
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getCode()
+        {
+            $ret;
+
+            if($this->count < $this->dataLength) {
+                $row = $this->count % $this->blocks;
+                $col = $this->count / $this->blocks;
+                if($col >= $this->rsblocks[0]->dataLength) {
+                    $row += $this->b1;
+                }
+                $ret = $this->rsblocks[$row]->data[$col];
+            } else if($this->count < $this->dataLength + $this->eccLength) {
+                $row = ($this->count - $this->dataLength) % $this->blocks;
+                $col = ($this->count - $this->dataLength) / $this->blocks;
+                $ret = $this->rsblocks[$row]->ecc[$col];
+            } else {
+                return 0;
+            }
+            $this->count++;
+            
+            return $ret;
+        }
+    }
+
+    //##########################################################################
+    
+    class QRcode {
+    
+        public $version;
+        public $width;
+        public $data; 
+        
+        //----------------------------------------------------------------------
+        public function encodeMask(QRinput $input, $mask)
+        {
+            if($input->getVersion() < 0 || $input->getVersion() > QRSPEC_VERSION_MAX) {
+                throw new Exception('wrong version');
+            }
+            if($input->getErrorCorrectionLevel() > QR_ECLEVEL_H) {
+                throw new Exception('wrong level');
+            }
+
+            $raw = new QRrawcode($input);
+            
+            QRtools::markTime('after_raw');
+            
+            $version = $raw->version;
+            $width = QRspec::getWidth($version);
+            $frame = QRspec::newFrame($version);
+            
+            $filler = new FrameFiller($width, $frame);
+            if(is_null($filler)) {
+                return NULL;
+            }
+
+            // inteleaved data and ecc codes
+            for($i=0; $i<$raw->dataLength + $raw->eccLength; $i++) {
+                $code = $raw->getCode();
+                $bit = 0x80;
+                for($j=0; $j<8; $j++) {
+                    $addr = $filler->next();
+                    $filler->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
+                    $bit = $bit >> 1;
+                }
+            }
+            
+            QRtools::markTime('after_filler');
+            
+            unset($raw);
+            
+            // remainder bits
+            $j = QRspec::getRemainder($version);
+            for($i=0; $i<$j; $i++) {
+                $addr = $filler->next();
+                $filler->setFrameAt($addr, 0x02);
+            }
+            
+            $frame = $filler->frame;
+            unset($filler);
+            
+            
+            // masking
+            $maskObj = new QRmask();
+            if($mask < 0) {
+            
+                if (QR_FIND_BEST_MASK) {
+                    $masked = $maskObj->mask($width, $frame, $input->getErrorCorrectionLevel());
+                } else {
+                    $masked = $maskObj->makeMask($width, $frame, (intval(QR_DEFAULT_MASK) % 8), $input->getErrorCorrectionLevel());
+                }
+            } else {
+                $masked = $maskObj->makeMask($width, $frame, $mask, $input->getErrorCorrectionLevel());
+            }
+            
+            if($masked == NULL) {
+                return NULL;
+            }
+            
+            QRtools::markTime('after_mask');
+            
+            $this->version = $version;
+            $this->width = $width;
+            $this->data = $masked;
+            
+            return $this;
+        }
+    
+        //----------------------------------------------------------------------
+        public function encodeInput(QRinput $input)
+        {
+            return $this->encodeMask($input, -1);
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeString8bit($string, $version, $level)
+        {
+            if(string == NULL) {
+                throw new Exception('empty string!');
+                return NULL;
+            }
+
+            $input = new QRinput($version, $level);
+            if($input == NULL) return NULL;
+
+            $ret = $input->append($input, QR_MODE_8, strlen($string), str_split($string));
+            if($ret < 0) {
+                unset($input);
+                return NULL;
+            }
+            return $this->encodeInput($input);
+        }
+
+        //----------------------------------------------------------------------
+        public function encodeString($string, $version, $level, $hint, $casesensitive)
+        {
+
+            if($hint != QR_MODE_8 && $hint != QR_MODE_KANJI) {
+                throw new Exception('bad hint');
+                return NULL;
+            }
+
+            $input = new QRinput($version, $level);
+            if($input == NULL) return NULL;
+
+            $ret = QRsplit::splitStringToQRinput($string, $input, $hint, $casesensitive);
+            if($ret < 0) {
+                return NULL;
+            }
+
+            return $this->encodeInput($input);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function png($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4, $saveandprint=false) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encodePNG($text, $outfile, $saveandprint=false);
+        }
+
+        //----------------------------------------------------------------------
+        public static function text($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encode($text, $outfile);
+        }
+
+        //----------------------------------------------------------------------
+        public static function raw($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encodeRAW($text, $outfile);
+        }
+    }
+    
+    //##########################################################################
+    
+    class FrameFiller {
+    
+        public $width;
+        public $frame;
+        public $x;
+        public $y;
+        public $dir;
+        public $bit;
+        
+        //----------------------------------------------------------------------
+        public function __construct($width, &$frame)
+        {
+            $this->width = $width;
+            $this->frame = $frame;
+            $this->x = $width - 1;
+            $this->y = $width - 1;
+            $this->dir = -1;
+            $this->bit = -1;
+        }
+        
+        //----------------------------------------------------------------------
+        public function setFrameAt($at, $val)
+        {
+            $this->frame[$at['y']][$at['x']] = chr($val);
+        }
+        
+        //----------------------------------------------------------------------
+        public function getFrameAt($at)
+        {
+            return ord($this->frame[$at['y']][$at['x']]);
+        }
+        
+        //----------------------------------------------------------------------
+        public function next()
+        {
+            do {
+            
+                if($this->bit == -1) {
+                    $this->bit = 0;
+                    return array('x'=>$this->x, 'y'=>$this->y);
+                }
+
+                $x = $this->x;
+                $y = $this->y;
+                $w = $this->width;
+
+                if($this->bit == 0) {
+                    $x--;
+                    $this->bit++;
+                } else {
+                    $x++;
+                    $y += $this->dir;
+                    $this->bit--;
+                }
+
+                if($this->dir < 0) {
+                    if($y < 0) {
+                        $y = 0;
+                        $x -= 2;
+                        $this->dir = 1;
+                        if($x == 6) {
+                            $x--;
+                            $y = 9;
+                        }
+                    }
+                } else {
+                    if($y == $w) {
+                        $y = $w - 1;
+                        $x -= 2;
+                        $this->dir = -1;
+                        if($x == 6) {
+                            $x--;
+                            $y -= 8;
+                        }
+                    }
+                }
+                if($x < 0 || $y < 0) return null;
+
+                $this->x = $x;
+                $this->y = $y;
+
+            } while(ord($this->frame[$y][$x]) & 0x80);
+                        
+            return array('x'=>$x, 'y'=>$y);
+        }
+        
+    } ;
+    
+    //##########################################################################    
+    
+    class QRencode {
+    
+        public $casesensitive = true;
+        public $eightbit = false;
+        
+        public $version = 0;
+        public $size = 3;
+        public $margin = 4;
+        
+        public $structured = 0; // not supported yet
+        
+        public $level = QR_ECLEVEL_L;
+        public $hint = QR_MODE_8;
+        
+        //----------------------------------------------------------------------
+        public static function factory($level = QR_ECLEVEL_L, $size = 3, $margin = 4)
+        {
+            $enc = new QRencode();
+            $enc->size = $size;
+            $enc->margin = $margin;
+            
+            switch ($level.'') {
+                case '0':
+                case '1':
+                case '2':
+                case '3':
+                        $enc->level = $level;
+                    break;
+                case 'l':
+                case 'L':
+                        $enc->level = QR_ECLEVEL_L;
+                    break;
+                case 'm':
+                case 'M':
+                        $enc->level = QR_ECLEVEL_M;
+                    break;
+                case 'q':
+                case 'Q':
+                        $enc->level = QR_ECLEVEL_Q;
+                    break;
+                case 'h':
+                case 'H':
+                        $enc->level = QR_ECLEVEL_H;
+                    break;
+            }
+            
+            return $enc;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeRAW($intext, $outfile = false) 
+        {
+            $code = new QRcode();
+
+            if($this->eightbit) {
+                $code->encodeString8bit($intext, $this->version, $this->level);
+            } else {
+                $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
+            }
+            
+            return $code->data;
+        }
+
+        //----------------------------------------------------------------------
+        public function encode($intext, $outfile = false) 
+        {
+            $code = new QRcode();
+
+            if($this->eightbit) {
+                $code->encodeString8bit($intext, $this->version, $this->level);
+            } else {
+                $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
+            }
+            
+            QRtools::markTime('after_encode');
+            
+            if ($outfile!== false) {
+                file_put_contents($outfile, join("\n", QRtools::binarize($code->data)));
+            } else {
+                return QRtools::binarize($code->data);
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodePNG($intext, $outfile = false,$saveandprint=false) 
+        {
+            try {
+            
+                ob_start();
+                $tab = $this->encode($intext);
+                $err = ob_get_contents();
+                ob_end_clean();
+                
+                if ($err != '')
+                    QRtools::log($outfile, $err);
+                
+                $maxSize = (int)(QR_PNG_MAXIMUM_SIZE / (count($tab)+2*$this->margin));
+                
+                QRimage::png($tab, $outfile, min(max(1, $this->size), $maxSize), $this->margin,$saveandprint);
+            
+            } catch (Exception $e) {
+            
+                QRtools::log($outfile, $e->getMessage());
+            
+            }
+        }
+    }
+
+
diff --git a/webui/system/helper/phpqrcode/qrbitstream.php b/webui/system/helper/phpqrcode/qrbitstream.php
new file mode 100644
index 00000000..7d4ec4a6
--- /dev/null
+++ b/webui/system/helper/phpqrcode/qrbitstream.php
@@ -0,0 +1,180 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Bitstream class
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+     
+    class QRbitstream {
+    
+        public $data = array();
+        
+        //----------------------------------------------------------------------
+        public function size()
+        {
+            return count($this->data);
+        }
+        
+        //----------------------------------------------------------------------
+        public function allocate($setLength)
+        {
+            $this->data = array_fill(0, $setLength, 0);
+            return 0;
+        }
+    
+        //----------------------------------------------------------------------
+        public static function newFromNum($bits, $num)
+        {
+            $bstream = new QRbitstream();
+            $bstream->allocate($bits);
+            
+            $mask = 1 << ($bits - 1);
+            for($i=0; $i<$bits; $i++) {
+                if($num & $mask) {
+                    $bstream->data[$i] = 1;
+                } else {
+                    $bstream->data[$i] = 0;
+                }
+                $mask = $mask >> 1;
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function newFromBytes($size, $data)
+        {
+            $bstream = new QRbitstream();
+            $bstream->allocate($size * 8);
+            $p=0;
+
+            for($i=0; $i<$size; $i++) {
+                $mask = 0x80;
+                for($j=0; $j<8; $j++) {
+                    if($data[$i] & $mask) {
+                        $bstream->data[$p] = 1;
+                    } else {
+                        $bstream->data[$p] = 0;
+                    }
+                    $p++;
+                    $mask = $mask >> 1;
+                }
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function append(QRbitstream $arg)
+        {
+            if (is_null($arg)) {
+                return -1;
+            }
+            
+            if($arg->size() == 0) {
+                return 0;
+            }
+            
+            if($this->size() == 0) {
+                $this->data = $arg->data;
+                return 0;
+            }
+            
+            $this->data = array_values(array_merge($this->data, $arg->data));
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendNum($bits, $num)
+        {
+            if ($bits == 0) 
+                return 0;
+
+            $b = QRbitstream::newFromNum($bits, $num);
+            
+            if(is_null($b))
+                return -1;
+
+            $ret = $this->append($b);
+            unset($b);
+
+            return $ret;
+        }
+
+        //----------------------------------------------------------------------
+        public function appendBytes($size, $data)
+        {
+            if ($size == 0) 
+                return 0;
+
+            $b = QRbitstream::newFromBytes($size, $data);
+            
+            if(is_null($b))
+                return -1;
+
+            $ret = $this->append($b);
+            unset($b);
+
+            return $ret;
+        }
+        
+        //----------------------------------------------------------------------
+        public function toByte()
+        {
+        
+            $size = $this->size();
+
+            if($size == 0) {
+                return array();
+            }
+            
+            $data = array_fill(0, (int)(($size + 7) / 8), 0);
+            $bytes = (int)($size / 8);
+
+            $p = 0;
+            
+            for($i=0; $i<$bytes; $i++) {
+                $v = 0;
+                for($j=0; $j<8; $j++) {
+                    $v = $v << 1;
+                    $v |= $this->data[$p];
+                    $p++;
+                }
+                $data[$i] = $v;
+            }
+            
+            if($size & 7) {
+                $v = 0;
+                for($j=0; $j<($size & 7); $j++) {
+                    $v = $v << 1;
+                    $v |= $this->data[$p];
+                    $p++;
+                }
+                $data[$bytes] = $v;
+            }
+
+            return $data;
+        }
+
+    }
diff --git a/webui/system/helper/phpqrcode/qrconfig.php b/webui/system/helper/phpqrcode/qrconfig.php
new file mode 100644
index 00000000..aa73ced3
--- /dev/null
+++ b/webui/system/helper/phpqrcode/qrconfig.php
@@ -0,0 +1,18 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Config file, feel free to modify
+ */
+     
+    define('QR_CACHEABLE', false);                                                              // use cache - more disk reads but less CPU power, masks and format templates are stored there
+    define('QR_CACHE_DIR', dirname(__FILE__).DIRECTORY_SEPARATOR.'cache'.DIRECTORY_SEPARATOR);  // used when QR_CACHEABLE === true
+    //define('QR_LOG_DIR', dirname(__FILE__).DIRECTORY_SEPARATOR);                              // default error logs dir   
+    define('QR_LOG_DIR', false);
+ 
+    define('QR_FIND_BEST_MASK', true);                                                          // if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
+    define('QR_FIND_FROM_RANDOM', false);                                                       // if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
+    define('QR_DEFAULT_MASK', 2);                                                               // when QR_FIND_BEST_MASK === false
+                                                  
+    define('QR_PNG_MAXIMUM_SIZE',  1024);                                                       // maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images
+                                                  
diff --git a/webui/system/helper/phpqrcode/qrconst.php b/webui/system/helper/phpqrcode/qrconst.php
new file mode 100644
index 00000000..9fac9fdc
--- /dev/null
+++ b/webui/system/helper/phpqrcode/qrconst.php
@@ -0,0 +1,54 @@
+<?php
+
+/*
+ * PHP QR Code encoder
+ *
+ * Common constants
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+	// Encoding modes
+	 
+	define('QR_MODE_NUL', -1);
+	define('QR_MODE_NUM', 0);
+	define('QR_MODE_AN', 1);
+	define('QR_MODE_8', 2);
+	define('QR_MODE_KANJI', 3);
+	define('QR_MODE_STRUCTURE', 4);
+
+	// Levels of error correction.
+
+	define('QR_ECLEVEL_L', 0);
+	define('QR_ECLEVEL_M', 1);
+	define('QR_ECLEVEL_Q', 2);
+	define('QR_ECLEVEL_H', 3);
+	
+	// Supported output formats
+	
+	define('QR_FORMAT_TEXT', 0);
+	define('QR_FORMAT_PNG',  1);
+	
+	class qrstr {
+		public static function set(&$srctab, $x, $y, $repl, $replLen = false) {
+			$srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
+		}
+	}	
\ No newline at end of file
diff --git a/webui/system/helper/phpqrcode/qrencode.php b/webui/system/helper/phpqrcode/qrencode.php
new file mode 100644
index 00000000..4b77a5bd
--- /dev/null
+++ b/webui/system/helper/phpqrcode/qrencode.php
@@ -0,0 +1,502 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Main encoder classes.
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    class QRrsblock {
+        public $dataLength;
+        public $data = array();
+        public $eccLength;
+        public $ecc = array();
+        
+        public function __construct($dl, $data, $el, &$ecc, QRrsItem $rs)
+        {
+            $rs->encode_rs_char($data, $ecc);
+        
+            $this->dataLength = $dl;
+            $this->data = $data;
+            $this->eccLength = $el;
+            $this->ecc = $ecc;
+        }
+    };
+    
+    //##########################################################################
+
+    class QRrawcode {
+        public $version;
+        public $datacode = array();
+        public $ecccode = array();
+        public $blocks;
+        public $rsblocks = array(); //of RSblock
+        public $count;
+        public $dataLength;
+        public $eccLength;
+        public $b1;
+        
+        //----------------------------------------------------------------------
+        public function __construct(QRinput $input)
+        {
+            $spec = array(0,0,0,0,0);
+            
+            $this->datacode = $input->getByteStream();
+            if(is_null($this->datacode)) {
+                throw new Exception('null imput string');
+            }
+
+            QRspec::getEccSpec($input->getVersion(), $input->getErrorCorrectionLevel(), $spec);
+
+            $this->version = $input->getVersion();
+            $this->b1 = QRspec::rsBlockNum1($spec);
+            $this->dataLength = QRspec::rsDataLength($spec);
+            $this->eccLength = QRspec::rsEccLength($spec);
+            $this->ecccode = array_fill(0, $this->eccLength, 0);
+            $this->blocks = QRspec::rsBlockNum($spec);
+            
+            $ret = $this->init($spec);
+            if($ret < 0) {
+                throw new Exception('block alloc error');
+                return null;
+            }
+
+            $this->count = 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function init(array $spec)
+        {
+            $dl = QRspec::rsDataCodes1($spec);
+            $el = QRspec::rsEccCodes1($spec);
+            $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+            
+
+            $blockNo = 0;
+            $dataPos = 0;
+            $eccPos = 0;
+            for($i=0; $i<QRspec::rsBlockNum1($spec); $i++) {
+                $ecc = array_slice($this->ecccode,$eccPos);
+                $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el,  $ecc, $rs);
+                $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
+                
+                $dataPos += $dl;
+                $eccPos += $el;
+                $blockNo++;
+            }
+
+            if(QRspec::rsBlockNum2($spec) == 0)
+                return 0;
+
+            $dl = QRspec::rsDataCodes2($spec);
+            $el = QRspec::rsEccCodes2($spec);
+            $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+            
+            if($rs == NULL) return -1;
+            
+            for($i=0; $i<QRspec::rsBlockNum2($spec); $i++) {
+                $ecc = array_slice($this->ecccode,$eccPos);
+                $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
+                $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
+                
+                $dataPos += $dl;
+                $eccPos += $el;
+                $blockNo++;
+            }
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getCode()
+        {
+            $ret;
+
+            if($this->count < $this->dataLength) {
+                $row = $this->count % $this->blocks;
+                $col = $this->count / $this->blocks;
+                if($col >= $this->rsblocks[0]->dataLength) {
+                    $row += $this->b1;
+                }
+                $ret = $this->rsblocks[$row]->data[$col];
+            } else if($this->count < $this->dataLength + $this->eccLength) {
+                $row = ($this->count - $this->dataLength) % $this->blocks;
+                $col = ($this->count - $this->dataLength) / $this->blocks;
+                $ret = $this->rsblocks[$row]->ecc[$col];
+            } else {
+                return 0;
+            }
+            $this->count++;
+            
+            return $ret;
+        }
+    }
+
+    //##########################################################################
+    
+    class QRcode {
+    
+        public $version;
+        public $width;
+        public $data; 
+        
+        //----------------------------------------------------------------------
+        public function encodeMask(QRinput $input, $mask)
+        {
+            if($input->getVersion() < 0 || $input->getVersion() > QRSPEC_VERSION_MAX) {
+                throw new Exception('wrong version');
+            }
+            if($input->getErrorCorrectionLevel() > QR_ECLEVEL_H) {
+                throw new Exception('wrong level');
+            }
+
+            $raw = new QRrawcode($input);
+            
+            QRtools::markTime('after_raw');
+            
+            $version = $raw->version;
+            $width = QRspec::getWidth($version);
+            $frame = QRspec::newFrame($version);
+            
+            $filler = new FrameFiller($width, $frame);
+            if(is_null($filler)) {
+                return NULL;
+            }
+
+            // inteleaved data and ecc codes
+            for($i=0; $i<$raw->dataLength + $raw->eccLength; $i++) {
+                $code = $raw->getCode();
+                $bit = 0x80;
+                for($j=0; $j<8; $j++) {
+                    $addr = $filler->next();
+                    $filler->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
+                    $bit = $bit >> 1;
+                }
+            }
+            
+            QRtools::markTime('after_filler');
+            
+            unset($raw);
+            
+            // remainder bits
+            $j = QRspec::getRemainder($version);
+            for($i=0; $i<$j; $i++) {
+                $addr = $filler->next();
+                $filler->setFrameAt($addr, 0x02);
+            }
+            
+            $frame = $filler->frame;
+            unset($filler);
+            
+            
+            // masking
+            $maskObj = new QRmask();
+            if($mask < 0) {
+            
+                if (QR_FIND_BEST_MASK) {
+                    $masked = $maskObj->mask($width, $frame, $input->getErrorCorrectionLevel());
+                } else {
+                    $masked = $maskObj->makeMask($width, $frame, (intval(QR_DEFAULT_MASK) % 8), $input->getErrorCorrectionLevel());
+                }
+            } else {
+                $masked = $maskObj->makeMask($width, $frame, $mask, $input->getErrorCorrectionLevel());
+            }
+            
+            if($masked == NULL) {
+                return NULL;
+            }
+            
+            QRtools::markTime('after_mask');
+            
+            $this->version = $version;
+            $this->width = $width;
+            $this->data = $masked;
+            
+            return $this;
+        }
+    
+        //----------------------------------------------------------------------
+        public function encodeInput(QRinput $input)
+        {
+            return $this->encodeMask($input, -1);
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeString8bit($string, $version, $level)
+        {
+            if(string == NULL) {
+                throw new Exception('empty string!');
+                return NULL;
+            }
+
+            $input = new QRinput($version, $level);
+            if($input == NULL) return NULL;
+
+            $ret = $input->append($input, QR_MODE_8, strlen($string), str_split($string));
+            if($ret < 0) {
+                unset($input);
+                return NULL;
+            }
+            return $this->encodeInput($input);
+        }
+
+        //----------------------------------------------------------------------
+        public function encodeString($string, $version, $level, $hint, $casesensitive)
+        {
+
+            if($hint != QR_MODE_8 && $hint != QR_MODE_KANJI) {
+                throw new Exception('bad hint');
+                return NULL;
+            }
+
+            $input = new QRinput($version, $level);
+            if($input == NULL) return NULL;
+
+            $ret = QRsplit::splitStringToQRinput($string, $input, $hint, $casesensitive);
+            if($ret < 0) {
+                return NULL;
+            }
+
+            return $this->encodeInput($input);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function png($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4, $saveandprint=false) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encodePNG($text, $outfile, $saveandprint=false);
+        }
+
+        //----------------------------------------------------------------------
+        public static function text($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encode($text, $outfile);
+        }
+
+        //----------------------------------------------------------------------
+        public static function raw($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encodeRAW($text, $outfile);
+        }
+    }
+    
+    //##########################################################################
+    
+    class FrameFiller {
+    
+        public $width;
+        public $frame;
+        public $x;
+        public $y;
+        public $dir;
+        public $bit;
+        
+        //----------------------------------------------------------------------
+        public function __construct($width, &$frame)
+        {
+            $this->width = $width;
+            $this->frame = $frame;
+            $this->x = $width - 1;
+            $this->y = $width - 1;
+            $this->dir = -1;
+            $this->bit = -1;
+        }
+        
+        //----------------------------------------------------------------------
+        public function setFrameAt($at, $val)
+        {
+            $this->frame[$at['y']][$at['x']] = chr($val);
+        }
+        
+        //----------------------------------------------------------------------
+        public function getFrameAt($at)
+        {
+            return ord($this->frame[$at['y']][$at['x']]);
+        }
+        
+        //----------------------------------------------------------------------
+        public function next()
+        {
+            do {
+            
+                if($this->bit == -1) {
+                    $this->bit = 0;
+                    return array('x'=>$this->x, 'y'=>$this->y);
+                }
+
+                $x = $this->x;
+                $y = $this->y;
+                $w = $this->width;
+
+                if($this->bit == 0) {
+                    $x--;
+                    $this->bit++;
+                } else {
+                    $x++;
+                    $y += $this->dir;
+                    $this->bit--;
+                }
+
+                if($this->dir < 0) {
+                    if($y < 0) {
+                        $y = 0;
+                        $x -= 2;
+                        $this->dir = 1;
+                        if($x == 6) {
+                            $x--;
+                            $y = 9;
+                        }
+                    }
+                } else {
+                    if($y == $w) {
+                        $y = $w - 1;
+                        $x -= 2;
+                        $this->dir = -1;
+                        if($x == 6) {
+                            $x--;
+                            $y -= 8;
+                        }
+                    }
+                }
+                if($x < 0 || $y < 0) return null;
+
+                $this->x = $x;
+                $this->y = $y;
+
+            } while(ord($this->frame[$y][$x]) & 0x80);
+                        
+            return array('x'=>$x, 'y'=>$y);
+        }
+        
+    } ;
+    
+    //##########################################################################    
+    
+    class QRencode {
+    
+        public $casesensitive = true;
+        public $eightbit = false;
+        
+        public $version = 0;
+        public $size = 3;
+        public $margin = 4;
+        
+        public $structured = 0; // not supported yet
+        
+        public $level = QR_ECLEVEL_L;
+        public $hint = QR_MODE_8;
+        
+        //----------------------------------------------------------------------
+        public static function factory($level = QR_ECLEVEL_L, $size = 3, $margin = 4)
+        {
+            $enc = new QRencode();
+            $enc->size = $size;
+            $enc->margin = $margin;
+            
+            switch ($level.'') {
+                case '0':
+                case '1':
+                case '2':
+                case '3':
+                        $enc->level = $level;
+                    break;
+                case 'l':
+                case 'L':
+                        $enc->level = QR_ECLEVEL_L;
+                    break;
+                case 'm':
+                case 'M':
+                        $enc->level = QR_ECLEVEL_M;
+                    break;
+                case 'q':
+                case 'Q':
+                        $enc->level = QR_ECLEVEL_Q;
+                    break;
+                case 'h':
+                case 'H':
+                        $enc->level = QR_ECLEVEL_H;
+                    break;
+            }
+            
+            return $enc;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeRAW($intext, $outfile = false) 
+        {
+            $code = new QRcode();
+
+            if($this->eightbit) {
+                $code->encodeString8bit($intext, $this->version, $this->level);
+            } else {
+                $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
+            }
+            
+            return $code->data;
+        }
+
+        //----------------------------------------------------------------------
+        public function encode($intext, $outfile = false) 
+        {
+            $code = new QRcode();
+
+            if($this->eightbit) {
+                $code->encodeString8bit($intext, $this->version, $this->level);
+            } else {
+                $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
+            }
+            
+            QRtools::markTime('after_encode');
+            
+            if ($outfile!== false) {
+                file_put_contents($outfile, join("\n", QRtools::binarize($code->data)));
+            } else {
+                return QRtools::binarize($code->data);
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodePNG($intext, $outfile = false,$saveandprint=false) 
+        {
+            try {
+            
+                ob_start();
+                $tab = $this->encode($intext);
+                $err = ob_get_contents();
+                ob_end_clean();
+                
+                if ($err != '')
+                    QRtools::log($outfile, $err);
+                
+                $maxSize = (int)(QR_PNG_MAXIMUM_SIZE / (count($tab)+2*$this->margin));
+                
+                QRimage::png($tab, $outfile, min(max(1, $this->size), $maxSize), $this->margin,$saveandprint);
+            
+            } catch (Exception $e) {
+            
+                QRtools::log($outfile, $e->getMessage());
+            
+            }
+        }
+    }
diff --git a/webui/system/helper/phpqrcode/qrimage.php b/webui/system/helper/phpqrcode/qrimage.php
new file mode 100644
index 00000000..10b0a6e1
--- /dev/null
+++ b/webui/system/helper/phpqrcode/qrimage.php
@@ -0,0 +1,95 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Image output of code using GD2
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('QR_IMAGE', true);
+
+    class QRimage {
+    
+        //----------------------------------------------------------------------
+        public static function png($frame, $filename = false, $pixelPerPoint = 4, $outerFrame = 4,$saveandprint=FALSE) 
+        {
+            $image = self::image($frame, $pixelPerPoint, $outerFrame);
+            
+            if ($filename === false) {
+                Header("Content-type: image/png");
+                ImagePng($image);
+            } else {
+                if($saveandprint===TRUE){
+                    ImagePng($image, $filename);
+                    header("Content-type: image/png");
+                    ImagePng($image);
+                }else{
+                    ImagePng($image, $filename);
+                }
+            }
+            
+            ImageDestroy($image);
+        }
+    
+        //----------------------------------------------------------------------
+        public static function jpg($frame, $filename = false, $pixelPerPoint = 8, $outerFrame = 4, $q = 85) 
+        {
+            $image = self::image($frame, $pixelPerPoint, $outerFrame);
+            
+            if ($filename === false) {
+                Header("Content-type: image/jpeg");
+                ImageJpeg($image, null, $q);
+            } else {
+                ImageJpeg($image, $filename, $q);            
+            }
+            
+            ImageDestroy($image);
+        }
+    
+        //----------------------------------------------------------------------
+        private static function image($frame, $pixelPerPoint = 4, $outerFrame = 4) 
+        {
+            $h = count($frame);
+            $w = strlen($frame[0]);
+            
+            $imgW = $w + 2*$outerFrame;
+            $imgH = $h + 2*$outerFrame;
+            
+            $base_image =ImageCreate($imgW, $imgH);
+            
+            $col[0] = ImageColorAllocate($base_image,255,255,255);
+            $col[1] = ImageColorAllocate($base_image,0,0,0);
+
+            imagefill($base_image, 0, 0, $col[0]);
+
+            for($y=0; $y<$h; $y++) {
+                for($x=0; $x<$w; $x++) {
+                    if ($frame[$y][$x] == '1') {
+                        ImageSetPixel($base_image,$x+$outerFrame,$y+$outerFrame,$col[1]); 
+                    }
+                }
+            }
+            
+            $target_image =ImageCreate($imgW * $pixelPerPoint, $imgH * $pixelPerPoint);
+            ImageCopyResized($target_image, $base_image, 0, 0, 0, 0, $imgW * $pixelPerPoint, $imgH * $pixelPerPoint, $imgW, $imgH);
+            ImageDestroy($base_image);
+            
+            return $target_image;
+        }
+    }
\ No newline at end of file
diff --git a/webui/system/helper/phpqrcode/qrinput.php b/webui/system/helper/phpqrcode/qrinput.php
new file mode 100644
index 00000000..0f6d7f94
--- /dev/null
+++ b/webui/system/helper/phpqrcode/qrinput.php
@@ -0,0 +1,729 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Input encoding class
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('STRUCTURE_HEADER_BITS',  20);
+    define('MAX_STRUCTURED_SYMBOLS', 16);
+
+    class QRinputItem {
+    
+        public $mode;
+        public $size;
+        public $data;
+        public $bstream;
+
+        public function __construct($mode, $size, $data, $bstream = null) 
+        {
+            $setData = array_slice($data, 0, $size);
+            
+            if (count($setData) < $size) {
+                $setData = array_merge($setData, array_fill(0,$size-count($setData),0));
+            }
+        
+            if(!QRinput::check($mode, $size, $setData)) {
+                throw new Exception('Error m:'.$mode.',s:'.$size.',d:'.join(',',$setData));
+                return null;
+            }
+            
+            $this->mode = $mode;
+            $this->size = $size;
+            $this->data = $setData;
+            $this->bstream = $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeNum($version)
+        {
+            try {
+            
+                $words = (int)($this->size / 3);
+                $bs = new QRbitstream();
+                
+                $val = 0x1;
+                $bs->appendNum(4, $val);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_NUM, $version), $this->size);
+
+                for($i=0; $i<$words; $i++) {
+                    $val  = (ord($this->data[$i*3  ]) - ord('0')) * 100;
+                    $val += (ord($this->data[$i*3+1]) - ord('0')) * 10;
+                    $val += (ord($this->data[$i*3+2]) - ord('0'));
+                    $bs->appendNum(10, $val);
+                }
+
+                if($this->size - $words * 3 == 1) {
+                    $val = ord($this->data[$words*3]) - ord('0');
+                    $bs->appendNum(4, $val);
+                } else if($this->size - $words * 3 == 2) {
+                    $val  = (ord($this->data[$words*3  ]) - ord('0')) * 10;
+                    $val += (ord($this->data[$words*3+1]) - ord('0'));
+                    $bs->appendNum(7, $val);
+                }
+
+                $this->bstream = $bs;
+                return 0;
+                
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeAn($version)
+        {
+            try {
+                $words = (int)($this->size / 2);
+                $bs = new QRbitstream();
+                
+                $bs->appendNum(4, 0x02);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_AN, $version), $this->size);
+
+                for($i=0; $i<$words; $i++) {
+                    $val  = (int)QRinput::lookAnTable(ord($this->data[$i*2  ])) * 45;
+                    $val += (int)QRinput::lookAnTable(ord($this->data[$i*2+1]));
+
+                    $bs->appendNum(11, $val);
+                }
+
+                if($this->size & 1) {
+                    $val = QRinput::lookAnTable(ord($this->data[$words * 2]));
+                    $bs->appendNum(6, $val);
+                }
+        
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeMode8($version)
+        {
+            try {
+                $bs = new QRbitstream();
+
+                $bs->appendNum(4, 0x4);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_8, $version), $this->size);
+
+                for($i=0; $i<$this->size; $i++) {
+                    $bs->appendNum(8, ord($this->data[$i]));
+                }
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeKanji($version)
+        {
+            try {
+
+                $bs = new QRbitrtream();
+                
+                $bs->appendNum(4, 0x8);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_KANJI, $version), (int)($this->size / 2));
+
+                for($i=0; $i<$this->size; $i+=2) {
+                    $val = (ord($this->data[$i]) << 8) | ord($this->data[$i+1]);
+                    if($val <= 0x9ffc) {
+                        $val -= 0x8140;
+                    } else {
+                        $val -= 0xc140;
+                    }
+                    
+                    $h = ($val >> 8) * 0xc0;
+                    $val = ($val & 0xff) + $h;
+
+                    $bs->appendNum(13, $val);
+                }
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function encodeModeStructure()
+        {
+            try {
+                $bs =  new QRbitstream();
+                
+                $bs->appendNum(4, 0x03);
+                $bs->appendNum(4, ord($this->data[1]) - 1);
+                $bs->appendNum(4, ord($this->data[0]) - 1);
+                $bs->appendNum(8, ord($this->data[2]));
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateBitStreamSizeOfEntry($version)
+        {
+            $bits = 0;
+
+            if($version == 0) 
+                $version = 1;
+
+            switch($this->mode) {
+                case QR_MODE_NUM:        $bits = QRinput::estimateBitsModeNum($this->size);    break;
+                case QR_MODE_AN:        $bits = QRinput::estimateBitsModeAn($this->size);    break;
+                case QR_MODE_8:            $bits = QRinput::estimateBitsMode8($this->size);    break;
+                case QR_MODE_KANJI:        $bits = QRinput::estimateBitsModeKanji($this->size);break;
+                case QR_MODE_STRUCTURE:    return STRUCTURE_HEADER_BITS;            
+                default:
+                    return 0;
+            }
+
+            $l = QRspec::lengthIndicator($this->mode, $version);
+            $m = 1 << $l;
+            $num = (int)(($this->size + $m - 1) / $m);
+
+            $bits += $num * (4 + $l);
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeBitStream($version)
+        {
+            try {
+            
+                unset($this->bstream);
+                $words = QRspec::maximumWords($this->mode, $version);
+                
+                if($this->size > $words) {
+                
+                    $st1 = new QRinputItem($this->mode, $words, $this->data);
+                    $st2 = new QRinputItem($this->mode, $this->size - $words, array_slice($this->data, $words));
+
+                    $st1->encodeBitStream($version);
+                    $st2->encodeBitStream($version);
+                    
+                    $this->bstream = new QRbitstream();
+                    $this->bstream->append($st1->bstream);
+                    $this->bstream->append($st2->bstream);
+                    
+                    unset($st1);
+                    unset($st2);
+                    
+                } else {
+                    
+                    $ret = 0;
+                    
+                    switch($this->mode) {
+                        case QR_MODE_NUM:        $ret = $this->encodeModeNum($version);    break;
+                        case QR_MODE_AN:        $ret = $this->encodeModeAn($version);    break;
+                        case QR_MODE_8:            $ret = $this->encodeMode8($version);    break;
+                        case QR_MODE_KANJI:        $ret = $this->encodeModeKanji($version);break;
+                        case QR_MODE_STRUCTURE:    $ret = $this->encodeModeStructure();    break;
+                        
+                        default:
+                            break;
+                    }
+                    
+                    if($ret < 0)
+                        return -1;
+                }
+
+                return $this->bstream->size();
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+    };
+    
+    //##########################################################################
+
+    class QRinput {
+
+        public $items;
+        
+        private $version;
+        private $level;
+        
+        //----------------------------------------------------------------------
+        public function __construct($version = 0, $level = QR_ECLEVEL_L)
+        {
+            if ($version < 0 || $version > QRSPEC_VERSION_MAX || $level > QR_ECLEVEL_H) {
+                throw new Exception('Invalid version no');
+                return NULL;
+            }
+            
+            $this->version = $version;
+            $this->level = $level;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getVersion()
+        {
+            return $this->version;
+        }
+        
+        //----------------------------------------------------------------------
+        public function setVersion($version)
+        {
+            if($version < 0 || $version > QRSPEC_VERSION_MAX) {
+                throw new Exception('Invalid version no');
+                return -1;
+            }
+
+            $this->version = $version;
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getErrorCorrectionLevel()
+        {
+            return $this->level;
+        }
+
+        //----------------------------------------------------------------------
+        public function setErrorCorrectionLevel($level)
+        {
+            if($level > QR_ECLEVEL_H) {
+                throw new Exception('Invalid ECLEVEL');
+                return -1;
+            }
+
+            $this->level = $level;
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendEntry(QRinputItem $entry)
+        {
+            $this->items[] = $entry;
+        }
+        
+        //----------------------------------------------------------------------
+        public function append($mode, $size, $data)
+        {
+            try {
+                $entry = new QRinputItem($mode, $size, $data);
+                $this->items[] = $entry;
+                return 0;
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        
+        public function insertStructuredAppendHeader($size, $index, $parity)
+        {
+            if( $size > MAX_STRUCTURED_SYMBOLS ) {
+                throw new Exception('insertStructuredAppendHeader wrong size');
+            }
+            
+            if( $index <= 0 || $index > MAX_STRUCTURED_SYMBOLS ) {
+                throw new Exception('insertStructuredAppendHeader wrong index');
+            }
+
+            $buf = array($size, $index, $parity);
+            
+            try {
+                $entry = new QRinputItem(QR_MODE_STRUCTURE, 3, buf);
+                array_unshift($this->items, $entry);
+                return 0;
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function calcParity()
+        {
+            $parity = 0;
+            
+            foreach($this->items as $item) {
+                if($item->mode != QR_MODE_STRUCTURE) {
+                    for($i=$item->size-1; $i>=0; $i--) {
+                        $parity ^= $item->data[$i];
+                    }
+                }
+            }
+
+            return $parity;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeNum($size, $data)
+        {
+            for($i=0; $i<$size; $i++) {
+                if((ord($data[$i]) < ord('0')) || (ord($data[$i]) > ord('9'))){
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        //----------------------------------------------------------------------
+        public static function estimateBitsModeNum($size)
+        {
+            $w = (int)$size / 3;
+            $bits = $w * 10;
+            
+            switch($size - $w * 3) {
+                case 1:
+                    $bits += 4;
+                    break;
+                case 2:
+                    $bits += 7;
+                    break;
+                default:
+                    break;
+            }
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public static $anTable = array(
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43,
+             0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 44, -1, -1, -1, -1, -1,
+            -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+            25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+        );
+        
+        //----------------------------------------------------------------------
+        public static function lookAnTable($c)
+        {
+            return (($c > 127)?-1:self::$anTable[$c]);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeAn($size, $data)
+        {
+            for($i=0; $i<$size; $i++) {
+                if (self::lookAnTable(ord($data[$i])) == -1) {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function estimateBitsModeAn($size)
+        {
+            $w = (int)($size / 2);
+            $bits = $w * 11;
+            
+            if($size & 1) {
+                $bits += 6;
+            }
+
+            return $bits;
+        }
+    
+        //----------------------------------------------------------------------
+        public static function estimateBitsMode8($size)
+        {
+            return $size * 8;
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateBitsModeKanji($size)
+        {
+            return (int)(($size / 2) * 13);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeKanji($size, $data)
+        {
+            if($size & 1)
+                return false;
+
+            for($i=0; $i<$size; $i+=2) {
+                $val = (ord($data[$i]) << 8) | ord($data[$i+1]);
+                if( $val < 0x8140 
+                || ($val > 0x9ffc && $val < 0xe040) 
+                || $val > 0xebbf) {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        /***********************************************************************
+         * Validation
+         **********************************************************************/
+
+        public static function check($mode, $size, $data)
+        {
+            if($size <= 0) 
+                return false;
+
+            switch($mode) {
+                case QR_MODE_NUM:       return self::checkModeNum($size, $data);   break;
+                case QR_MODE_AN:        return self::checkModeAn($size, $data);    break;
+                case QR_MODE_KANJI:     return self::checkModeKanji($size, $data); break;
+                case QR_MODE_8:         return true; break;
+                case QR_MODE_STRUCTURE: return true; break;
+                
+                default:
+                    break;
+            }
+
+            return false;
+        }
+        
+        
+        //----------------------------------------------------------------------
+        public function estimateBitStreamSize($version)
+        {
+            $bits = 0;
+
+            foreach($this->items as $item) {
+                $bits += $item->estimateBitStreamSizeOfEntry($version);
+            }
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateVersion()
+        {
+            $version = 0;
+            $prev = 0;
+            do {
+                $prev = $version;
+                $bits = $this->estimateBitStreamSize($prev);
+                $version = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+                if ($version < 0) {
+                    return -1;
+                }
+            } while ($version > $prev);
+
+            return $version;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function lengthOfCode($mode, $version, $bits)
+        {
+            $payload = $bits - 4 - QRspec::lengthIndicator($mode, $version);
+            switch($mode) {
+                case QR_MODE_NUM:
+                    $chunks = (int)($payload / 10);
+                    $remain = $payload - $chunks * 10;
+                    $size = $chunks * 3;
+                    if($remain >= 7) {
+                        $size += 2;
+                    } else if($remain >= 4) {
+                        $size += 1;
+                    }
+                    break;
+                case QR_MODE_AN:
+                    $chunks = (int)($payload / 11);
+                    $remain = $payload - $chunks * 11;
+                    $size = $chunks * 2;
+                    if($remain >= 6) 
+                        $size++;
+                    break;
+                case QR_MODE_8:
+                    $size = (int)($payload / 8);
+                    break;
+                case QR_MODE_KANJI:
+                    $size = (int)(($payload / 13) * 2);
+                    break;
+                case QR_MODE_STRUCTURE:
+                    $size = (int)($payload / 8);
+                    break;
+                default:
+                    $size = 0;
+                    break;
+            }
+            
+            $maxsize = QRspec::maximumWords($mode, $version);
+            if($size < 0) $size = 0;
+            if($size > $maxsize) $size = $maxsize;
+
+            return $size;
+        }
+        
+        //----------------------------------------------------------------------
+        public function createBitStream()
+        {
+            $total = 0;
+
+            foreach($this->items as $item) {
+                $bits = $item->encodeBitStream($this->version);
+                
+                if($bits < 0) 
+                    return -1;
+                    
+                $total += $bits;
+            }
+
+            return $total;
+        }
+        
+        //----------------------------------------------------------------------
+        public function convertData()
+        {
+            $ver = $this->estimateVersion();
+            if($ver > $this->getVersion()) {
+                $this->setVersion($ver);
+            }
+
+            for(;;) {
+                $bits = $this->createBitStream();
+                
+                if($bits < 0) 
+                    return -1;
+                    
+                $ver = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+                if($ver < 0) {
+                    throw new Exception('WRONG VERSION');
+                    return -1;
+                } else if($ver > $this->getVersion()) {
+                    $this->setVersion($ver);
+                } else {
+                    break;
+                }
+            }
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendPaddingBit(&$bstream)
+        {
+            $bits = $bstream->size();
+            $maxwords = QRspec::getDataLength($this->version, $this->level);
+            $maxbits = $maxwords * 8;
+
+            if ($maxbits == $bits) {
+                return 0;
+            }
+
+            if ($maxbits - $bits < 5) {
+                return $bstream->appendNum($maxbits - $bits, 0);
+            }
+
+            $bits += 4;
+            $words = (int)(($bits + 7) / 8);
+
+            $padding = new QRbitstream();
+            $ret = $padding->appendNum($words * 8 - $bits + 4, 0);
+            
+            if($ret < 0) 
+                return $ret;
+
+            $padlen = $maxwords - $words;
+            
+            if($padlen > 0) {
+                
+                $padbuf = array();
+                for($i=0; $i<$padlen; $i++) {
+                    $padbuf[$i] = ($i&1)?0x11:0xec;
+                }
+                
+                $ret = $padding->appendBytes($padlen, $padbuf);
+                
+                if($ret < 0)
+                    return $ret;
+                
+            }
+
+            $ret = $bstream->append($padding);
+            
+            return $ret;
+        }
+
+        //----------------------------------------------------------------------
+        public function mergeBitStream()
+        {
+            if($this->convertData() < 0) {
+                return null;
+            }
+
+            $bstream = new QRbitstream();
+            
+            foreach($this->items as $item) {
+                $ret = $bstream->append($item->bstream);
+                if($ret < 0) {
+                    return null;
+                }
+            }
+
+            return $bstream;
+        }
+
+        //----------------------------------------------------------------------
+        public function getBitStream()
+        {
+
+            $bstream = $this->mergeBitStream();
+            
+            if($bstream == null) {
+                return null;
+            }
+            
+            $ret = $this->appendPaddingBit($bstream);
+            if($ret < 0) {
+                return null;
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getByteStream()
+        {
+            $bstream = $this->getBitStream();
+            if($bstream == null) {
+                return null;
+            }
+            
+            return $bstream->toByte();
+        }
+    }
+        
+        
+    
\ No newline at end of file
diff --git a/webui/system/helper/phpqrcode/qrlib.php b/webui/system/helper/phpqrcode/qrlib.php
new file mode 100644
index 00000000..d55c4af2
--- /dev/null
+++ b/webui/system/helper/phpqrcode/qrlib.php
@@ -0,0 +1,43 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Root library file, prepares environment and includes dependencies
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+	
+	$QR_BASEDIR = dirname(__FILE__).DIRECTORY_SEPARATOR;
+	
+	// Required libs
+	
+	include $QR_BASEDIR."qrconst.php";
+	include $QR_BASEDIR."qrconfig.php";
+	include $QR_BASEDIR."qrtools.php";
+	include $QR_BASEDIR."qrspec.php";
+	include $QR_BASEDIR."qrimage.php";
+	include $QR_BASEDIR."qrinput.php";
+	include $QR_BASEDIR."qrbitstream.php";
+	include $QR_BASEDIR."qrsplit.php";
+	include $QR_BASEDIR."qrrscode.php";
+	include $QR_BASEDIR."qrmask.php";
+	include $QR_BASEDIR."qrencode.php";
+
diff --git a/webui/system/helper/phpqrcode/qrmask.php b/webui/system/helper/phpqrcode/qrmask.php
new file mode 100644
index 00000000..b14d7ae1
--- /dev/null
+++ b/webui/system/helper/phpqrcode/qrmask.php
@@ -0,0 +1,328 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Masking
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+	define('N1', 3);
+	define('N2', 3);
+	define('N3', 40);
+	define('N4', 10);
+
+	class QRmask {
+	
+		public $runLength = array();
+		
+		//----------------------------------------------------------------------
+		public function __construct() 
+        {
+            $this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
+        }
+        
+        //----------------------------------------------------------------------
+        public function writeFormatInformation($width, &$frame, $mask, $level)
+        {
+            $blacks = 0;
+            $format =  QRspec::getFormatInfo($mask, $level);
+
+            for($i=0; $i<8; $i++) {
+                if($format & 1) {
+                    $blacks += 2;
+                    $v = 0x85;
+                } else {
+                    $v = 0x84;
+                }
+                
+                $frame[8][$width - 1 - $i] = chr($v);
+                if($i < 6) {
+                    $frame[$i][8] = chr($v);
+                } else {
+                    $frame[$i + 1][8] = chr($v);
+                }
+                $format = $format >> 1;
+            }
+            
+            for($i=0; $i<7; $i++) {
+                if($format & 1) {
+                    $blacks += 2;
+                    $v = 0x85;
+                } else {
+                    $v = 0x84;
+                }
+                
+                $frame[$width - 7 + $i][8] = chr($v);
+                if($i == 0) {
+                    $frame[8][7] = chr($v);
+                } else {
+                    $frame[8][6 - $i] = chr($v);
+                }
+                
+                $format = $format >> 1;
+            }
+
+            return $blacks;
+        }
+        
+        //----------------------------------------------------------------------
+        public function mask0($x, $y) { return ($x+$y)&1;                       }
+        public function mask1($x, $y) { return ($y&1);                          }
+        public function mask2($x, $y) { return ($x%3);                          }
+        public function mask3($x, $y) { return ($x+$y)%3;                       }
+        public function mask4($x, $y) { return (((int)($y/2))+((int)($x/3)))&1; }
+        public function mask5($x, $y) { return (($x*$y)&1)+($x*$y)%3;           }
+        public function mask6($x, $y) { return ((($x*$y)&1)+($x*$y)%3)&1;       }
+        public function mask7($x, $y) { return ((($x*$y)%3)+(($x+$y)&1))&1;     }
+        
+        //----------------------------------------------------------------------
+        private function generateMaskNo($maskNo, $width, $frame)
+        {
+            $bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+            
+            for($y=0; $y<$width; $y++) {
+                for($x=0; $x<$width; $x++) {
+                    if(ord($frame[$y][$x]) & 0x80) {
+                        $bitMask[$y][$x] = 0;
+                    } else {
+                        $maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
+                        $bitMask[$y][$x] = ($maskFunc == 0)?1:0;
+                    }
+                    
+                }
+            }
+            
+            return $bitMask;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function serial($bitFrame)
+        {
+            $codeArr = array();
+            
+            foreach ($bitFrame as $line)
+                $codeArr[] = join('', $line);
+                
+            return gzcompress(join("\n", $codeArr), 9);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function unserial($code)
+        {
+            $codeArr = array();
+            
+            $codeLines = explode("\n", gzuncompress($code));
+            foreach ($codeLines as $line)
+                $codeArr[] = str_split($line);
+            
+            return $codeArr;
+        }
+        
+        //----------------------------------------------------------------------
+        public function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly = false) 
+        {
+            $b = 0;
+            $bitMask = array();
+            
+            $fileName = QR_CACHE_DIR.'mask_'.$maskNo.DIRECTORY_SEPARATOR.'mask_'.$width.'_'.$maskNo.'.dat';
+
+            if (QR_CACHEABLE) {
+                if (file_exists($fileName)) {
+                    $bitMask = self::unserial(file_get_contents($fileName));
+                } else {
+                    $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
+                    if (!file_exists(QR_CACHE_DIR.'mask_'.$maskNo))
+                        mkdir(QR_CACHE_DIR.'mask_'.$maskNo);
+                    file_put_contents($fileName, self::serial($bitMask));
+                }
+            } else {
+                $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
+            }
+
+            if ($maskGenOnly)
+                return;
+                
+            $d = $s;
+
+            for($y=0; $y<$width; $y++) {
+                for($x=0; $x<$width; $x++) {
+                    if($bitMask[$y][$x] == 1) {
+                        $d[$y][$x] = chr(ord($s[$y][$x]) ^ (int)$bitMask[$y][$x]);
+                    }
+                    $b += (int)(ord($d[$y][$x]) & 1);
+                }
+            }
+
+            return $b;
+        }
+        
+        //----------------------------------------------------------------------
+        public function makeMask($width, $frame, $maskNo, $level)
+        {
+            $masked = array_fill(0, $width, str_repeat("\0", $width));
+            $this->makeMaskNo($maskNo, $width, $frame, $masked);
+            $this->writeFormatInformation($width, $masked, $maskNo, $level);
+       
+            return $masked;
+        }
+        
+        //----------------------------------------------------------------------
+        public function calcN1N3($length)
+        {
+            $demerit = 0;
+
+            for($i=0; $i<$length; $i++) {
+                
+                if($this->runLength[$i] >= 5) {
+                    $demerit += (N1 + ($this->runLength[$i] - 5));
+                }
+                if($i & 1) {
+                    if(($i >= 3) && ($i < ($length-2)) && ($this->runLength[$i] % 3 == 0)) {
+                        $fact = (int)($this->runLength[$i] / 3);
+                        if(($this->runLength[$i-2] == $fact) &&
+                           ($this->runLength[$i-1] == $fact) &&
+                           ($this->runLength[$i+1] == $fact) &&
+                           ($this->runLength[$i+2] == $fact)) {
+                            if(($this->runLength[$i-3] < 0) || ($this->runLength[$i-3] >= (4 * $fact))) {
+                                $demerit += N3;
+                            } else if((($i+3) >= $length) || ($this->runLength[$i+3] >= (4 * $fact))) {
+                                $demerit += N3;
+                            }
+                        }
+                    }
+                }
+            }
+            return $demerit;
+        }
+        
+        //----------------------------------------------------------------------
+        public function evaluateSymbol($width, $frame)
+        {
+            $head = 0;
+            $demerit = 0;
+
+            for($y=0; $y<$width; $y++) {
+                $head = 0;
+                $this->runLength[0] = 1;
+                
+                $frameY = $frame[$y];
+                
+                if ($y>0)
+                    $frameYM = $frame[$y-1];
+                
+                for($x=0; $x<$width; $x++) {
+                    if(($x > 0) && ($y > 0)) {
+                        $b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]);
+                        $w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]);
+                        
+                        if(($b22 | ($w22 ^ 1))&1) {                                                                     
+                            $demerit += N2;
+                        }
+                    }
+                    if(($x == 0) && (ord($frameY[$x]) & 1)) {
+                        $this->runLength[0] = -1;
+                        $head = 1;
+                        $this->runLength[$head] = 1;
+                    } else if($x > 0) {
+                        if((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) {
+                            $head++;
+                            $this->runLength[$head] = 1;
+                        } else {
+                            $this->runLength[$head]++;
+                        }
+                    }
+                }
+    
+                $demerit += $this->calcN1N3($head+1);
+            }
+
+            for($x=0; $x<$width; $x++) {
+                $head = 0;
+                $this->runLength[0] = 1;
+                
+                for($y=0; $y<$width; $y++) {
+                    if($y == 0 && (ord($frame[$y][$x]) & 1)) {
+                        $this->runLength[0] = -1;
+                        $head = 1;
+                        $this->runLength[$head] = 1;
+                    } else if($y > 0) {
+                        if((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) {
+                            $head++;
+                            $this->runLength[$head] = 1;
+                        } else {
+                            $this->runLength[$head]++;
+                        }
+                    }
+                }
+            
+                $demerit += $this->calcN1N3($head+1);
+            }
+
+            return $demerit;
+        }
+        
+        
+        //----------------------------------------------------------------------
+        public function mask($width, $frame, $level)
+        {
+            $minDemerit = PHP_INT_MAX;
+            $bestMaskNum = 0;
+            $bestMask = array();
+            
+            $checked_masks = array(0,1,2,3,4,5,6,7);
+            
+            if (QR_FIND_FROM_RANDOM !== false) {
+            
+                $howManuOut = 8-(QR_FIND_FROM_RANDOM % 9);
+                for ($i = 0; $i <  $howManuOut; $i++) {
+                    $remPos = rand (0, count($checked_masks)-1);
+                    unset($checked_masks[$remPos]);
+                    $checked_masks = array_values($checked_masks);
+                }
+            
+            }
+            
+            $bestMask = $frame;
+             
+            foreach($checked_masks as $i) {
+                $mask = array_fill(0, $width, str_repeat("\0", $width));
+
+                $demerit = 0;
+                $blacks = 0;
+                $blacks  = $this->makeMaskNo($i, $width, $frame, $mask);
+                $blacks += $this->writeFormatInformation($width, $mask, $i, $level);
+                $blacks  = (int)(100 * $blacks / ($width * $width));
+                $demerit = (int)((int)(abs($blacks - 50) / 5) * N4);
+                $demerit += $this->evaluateSymbol($width, $mask);
+                
+                if($demerit < $minDemerit) {
+                    $minDemerit = $demerit;
+                    $bestMask = $mask;
+                    $bestMaskNum = $i;
+                }
+            }
+            
+            return $bestMask;
+        }
+        
+        //----------------------------------------------------------------------
+    }
diff --git a/webui/system/helper/phpqrcode/qrrscode.php b/webui/system/helper/phpqrcode/qrrscode.php
new file mode 100644
index 00000000..591129a3
--- /dev/null
+++ b/webui/system/helper/phpqrcode/qrrscode.php
@@ -0,0 +1,210 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Reed-Solomon error correction support
+ * 
+ * Copyright (C) 2002, 2003, 2004, 2006 Phil Karn, KA9Q
+ * (libfec is released under the GNU Lesser General Public License.)
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    class QRrsItem {
+    
+        public $mm;                  // Bits per symbol 
+        public $nn;                  // Symbols per block (= (1<<mm)-1) 
+        public $alpha_to = array();  // log lookup table 
+        public $index_of = array();  // Antilog lookup table 
+        public $genpoly = array();   // Generator polynomial 
+        public $nroots;              // Number of generator roots = number of parity symbols 
+        public $fcr;                 // First consecutive root, index form 
+        public $prim;                // Primitive element, index form 
+        public $iprim;               // prim-th root of 1, index form 
+        public $pad;                 // Padding bytes in shortened block 
+        public $gfpoly;
+    
+        //----------------------------------------------------------------------
+        public function modnn($x)
+        {
+            while ($x >= $this->nn) {
+                $x -= $this->nn;
+                $x = ($x >> $this->mm) + ($x & $this->nn);
+            }
+            
+            return $x;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
+        {
+            // Common code for intializing a Reed-Solomon control block (char or int symbols)
+            // Copyright 2004 Phil Karn, KA9Q
+            // May be used under the terms of the GNU Lesser General Public License (LGPL)
+
+            $rs = null;
+            
+            // Check parameter ranges
+            if($symsize < 0 || $symsize > 8)                     return $rs;
+            if($fcr < 0 || $fcr >= (1<<$symsize))                return $rs;
+            if($prim <= 0 || $prim >= (1<<$symsize))             return $rs;
+            if($nroots < 0 || $nroots >= (1<<$symsize))          return $rs; // Can't have more roots than symbol values!
+            if($pad < 0 || $pad >= ((1<<$symsize) -1 - $nroots)) return $rs; // Too much padding
+
+            $rs = new QRrsItem();
+            $rs->mm = $symsize;
+            $rs->nn = (1<<$symsize)-1;
+            $rs->pad = $pad;
+
+            $rs->alpha_to = array_fill(0, $rs->nn+1, 0);
+            $rs->index_of = array_fill(0, $rs->nn+1, 0);
+          
+            // PHP style macro replacement ;)
+            $NN =& $rs->nn;
+            $A0 =& $NN;
+            
+            // Generate Galois field lookup tables
+            $rs->index_of[0] = $A0; // log(zero) = -inf
+            $rs->alpha_to[$A0] = 0; // alpha**-inf = 0
+            $sr = 1;
+          
+            for($i=0; $i<$rs->nn; $i++) {
+                $rs->index_of[$sr] = $i;
+                $rs->alpha_to[$i] = $sr;
+                $sr <<= 1;
+                if($sr & (1<<$symsize)) {
+                    $sr ^= $gfpoly;
+                }
+                $sr &= $rs->nn;
+            }
+            
+            if($sr != 1){
+                // field generator polynomial is not primitive!
+                $rs = NULL;
+                return $rs;
+            }
+
+            /* Form RS code generator polynomial from its roots */
+            $rs->genpoly = array_fill(0, $nroots+1, 0);
+        
+            $rs->fcr = $fcr;
+            $rs->prim = $prim;
+            $rs->nroots = $nroots;
+            $rs->gfpoly = $gfpoly;
+
+            /* Find prim-th root of 1, used in decoding */
+            for($iprim=1;($iprim % $prim) != 0;$iprim += $rs->nn)
+            ; // intentional empty-body loop!
+            
+            $rs->iprim = (int)($iprim / $prim);
+            $rs->genpoly[0] = 1;
+            
+            for ($i = 0,$root=$fcr*$prim; $i < $nroots; $i++, $root += $prim) {
+                $rs->genpoly[$i+1] = 1;
+
+                // Multiply rs->genpoly[] by  @**(root + x)
+                for ($j = $i; $j > 0; $j--) {
+                    if ($rs->genpoly[$j] != 0) {
+                        $rs->genpoly[$j] = $rs->genpoly[$j-1] ^ $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[$j]] + $root)];
+                    } else {
+                        $rs->genpoly[$j] = $rs->genpoly[$j-1];
+                    }
+                }
+                // rs->genpoly[0] can never be zero
+                $rs->genpoly[0] = $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[0]] + $root)];
+            }
+            
+            // convert rs->genpoly[] to index form for quicker encoding
+            for ($i = 0; $i <= $nroots; $i++)
+                $rs->genpoly[$i] = $rs->index_of[$rs->genpoly[$i]];
+
+            return $rs;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encode_rs_char($data, &$parity)
+        {
+            $MM       =& $this->mm;
+            $NN       =& $this->nn;
+            $ALPHA_TO =& $this->alpha_to;
+            $INDEX_OF =& $this->index_of;
+            $GENPOLY  =& $this->genpoly;
+            $NROOTS   =& $this->nroots;
+            $FCR      =& $this->fcr;
+            $PRIM     =& $this->prim;
+            $IPRIM    =& $this->iprim;
+            $PAD      =& $this->pad;
+            $A0       =& $NN;
+
+            $parity = array_fill(0, $NROOTS, 0);
+
+            for($i=0; $i< ($NN-$NROOTS-$PAD); $i++) {
+                
+                $feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
+                if($feedback != $A0) {      
+                    // feedback term is non-zero
+            
+                    // This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
+                    // always be for the polynomials constructed by init_rs()
+                    $feedback = $this->modnn($NN - $GENPOLY[$NROOTS] + $feedback);
+            
+                    for($j=1;$j<$NROOTS;$j++) {
+                        $parity[$j] ^= $ALPHA_TO[$this->modnn($feedback + $GENPOLY[$NROOTS-$j])];
+                    }
+                }
+                
+                // Shift 
+                array_shift($parity);
+                if($feedback != $A0) {
+                    array_push($parity, $ALPHA_TO[$this->modnn($feedback + $GENPOLY[0])]);
+                } else {
+                    array_push($parity, 0);
+                }
+            }
+        }
+    }
+    
+    //##########################################################################
+    
+    class QRrs {
+    
+        public static $items = array();
+        
+        //----------------------------------------------------------------------
+        public static function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
+        {
+            foreach(self::$items as $rs) {
+                if($rs->pad != $pad)       continue;
+                if($rs->nroots != $nroots) continue;
+                if($rs->mm != $symsize)    continue;
+                if($rs->gfpoly != $gfpoly) continue;
+                if($rs->fcr != $fcr)       continue;
+                if($rs->prim != $prim)     continue;
+
+                return $rs;
+            }
+
+            $rs = QRrsItem::init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
+            array_unshift(self::$items, $rs);
+
+            return $rs;
+        }
+    }
\ No newline at end of file
diff --git a/webui/system/helper/phpqrcode/qrspec.php b/webui/system/helper/phpqrcode/qrspec.php
new file mode 100644
index 00000000..92aea0c7
--- /dev/null
+++ b/webui/system/helper/phpqrcode/qrspec.php
@@ -0,0 +1,592 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * QR Code specifications
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * The following data / specifications are taken from
+ * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
+ *  or
+ * "Automatic identification and data capture techniques -- 
+ *  QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('QRSPEC_VERSION_MAX', 40);
+    define('QRSPEC_WIDTH_MAX',   177);
+
+    define('QRCAP_WIDTH',        0);
+    define('QRCAP_WORDS',        1);
+    define('QRCAP_REMINDER',     2);
+    define('QRCAP_EC',           3);
+
+    class QRspec {
+    
+        public static $capacity = array(
+            array(  0,    0, 0, array(   0,    0,    0,    0)),
+            array( 21,   26, 0, array(   7,   10,   13,   17)), // 1
+            array( 25,   44, 7, array(  10,   16,   22,   28)),
+            array( 29,   70, 7, array(  15,   26,   36,   44)),
+            array( 33,  100, 7, array(  20,   36,   52,   64)),
+            array( 37,  134, 7, array(  26,   48,   72,   88)), // 5
+            array( 41,  172, 7, array(  36,   64,   96,  112)),
+            array( 45,  196, 0, array(  40,   72,  108,  130)),
+            array( 49,  242, 0, array(  48,   88,  132,  156)),
+            array( 53,  292, 0, array(  60,  110,  160,  192)),
+            array( 57,  346, 0, array(  72,  130,  192,  224)), //10
+            array( 61,  404, 0, array(  80,  150,  224,  264)),
+            array( 65,  466, 0, array(  96,  176,  260,  308)),
+            array( 69,  532, 0, array( 104,  198,  288,  352)),
+            array( 73,  581, 3, array( 120,  216,  320,  384)),
+            array( 77,  655, 3, array( 132,  240,  360,  432)), //15
+            array( 81,  733, 3, array( 144,  280,  408,  480)),
+            array( 85,  815, 3, array( 168,  308,  448,  532)),
+            array( 89,  901, 3, array( 180,  338,  504,  588)),
+            array( 93,  991, 3, array( 196,  364,  546,  650)),
+            array( 97, 1085, 3, array( 224,  416,  600,  700)), //20
+            array(101, 1156, 4, array( 224,  442,  644,  750)),
+            array(105, 1258, 4, array( 252,  476,  690,  816)),
+            array(109, 1364, 4, array( 270,  504,  750,  900)),
+            array(113, 1474, 4, array( 300,  560,  810,  960)),
+            array(117, 1588, 4, array( 312,  588,  870, 1050)), //25
+            array(121, 1706, 4, array( 336,  644,  952, 1110)),
+            array(125, 1828, 4, array( 360,  700, 1020, 1200)),
+            array(129, 1921, 3, array( 390,  728, 1050, 1260)),
+            array(133, 2051, 3, array( 420,  784, 1140, 1350)),
+            array(137, 2185, 3, array( 450,  812, 1200, 1440)), //30
+            array(141, 2323, 3, array( 480,  868, 1290, 1530)),
+            array(145, 2465, 3, array( 510,  924, 1350, 1620)),
+            array(149, 2611, 3, array( 540,  980, 1440, 1710)),
+            array(153, 2761, 3, array( 570, 1036, 1530, 1800)),
+            array(157, 2876, 0, array( 570, 1064, 1590, 1890)), //35
+            array(161, 3034, 0, array( 600, 1120, 1680, 1980)),
+            array(165, 3196, 0, array( 630, 1204, 1770, 2100)),
+            array(169, 3362, 0, array( 660, 1260, 1860, 2220)),
+            array(173, 3532, 0, array( 720, 1316, 1950, 2310)),
+            array(177, 3706, 0, array( 750, 1372, 2040, 2430)) //40
+        );
+        
+        //----------------------------------------------------------------------
+        public static function getDataLength($version, $level)
+        {
+            return self::$capacity[$version][QRCAP_WORDS] - self::$capacity[$version][QRCAP_EC][$level];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getECCLength($version, $level)
+        {
+            return self::$capacity[$version][QRCAP_EC][$level];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getWidth($version)
+        {
+            return self::$capacity[$version][QRCAP_WIDTH];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getRemainder($version)
+        {
+            return self::$capacity[$version][QRCAP_REMINDER];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getMinimumVersion($size, $level)
+        {
+
+            for($i=1; $i<= QRSPEC_VERSION_MAX; $i++) {
+                $words  = self::$capacity[$i][QRCAP_WORDS] - self::$capacity[$i][QRCAP_EC][$level];
+                if($words >= $size) 
+                    return $i;
+            }
+
+            return -1;
+        }
+    
+        //######################################################################
+        
+        public static $lengthTableBits = array(
+            array(10, 12, 14),
+            array( 9, 11, 13),
+            array( 8, 16, 16),
+            array( 8, 10, 12)
+        );
+        
+        //----------------------------------------------------------------------
+        public static function lengthIndicator($mode, $version)
+        {
+            if ($mode == QR_MODE_STRUCTURE)
+                return 0;
+                
+            if ($version <= 9) {
+                $l = 0;
+            } else if ($version <= 26) {
+                $l = 1;
+            } else {
+                $l = 2;
+            }
+
+            return self::$lengthTableBits[$mode][$l];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function maximumWords($mode, $version)
+        {
+            if($mode == QR_MODE_STRUCTURE) 
+                return 3;
+                
+            if($version <= 9) {
+                $l = 0;
+            } else if($version <= 26) {
+                $l = 1;
+            } else {
+                $l = 2;
+            }
+
+            $bits = self::$lengthTableBits[$mode][$l];
+            $words = (1 << $bits) - 1;
+            
+            if($mode == QR_MODE_KANJI) {
+                $words *= 2; // the number of bytes is required
+            }
+
+            return $words;
+        }
+
+        // Error correction code -----------------------------------------------
+        // Table of the error correction code (Reed-Solomon block)
+        // See Table 12-16 (pp.30-36), JIS X0510:2004.
+
+        public static $eccTable = array(
+            array(array( 0,  0), array( 0,  0), array( 0,  0), array( 0,  0)),
+            array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)), // 1
+            array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)),
+            array(array( 1,  0), array( 1,  0), array( 2,  0), array( 2,  0)),
+            array(array( 1,  0), array( 2,  0), array( 2,  0), array( 4,  0)),
+            array(array( 1,  0), array( 2,  0), array( 2,  2), array( 2,  2)), // 5
+            array(array( 2,  0), array( 4,  0), array( 4,  0), array( 4,  0)),
+            array(array( 2,  0), array( 4,  0), array( 2,  4), array( 4,  1)),
+            array(array( 2,  0), array( 2,  2), array( 4,  2), array( 4,  2)),
+            array(array( 2,  0), array( 3,  2), array( 4,  4), array( 4,  4)),
+            array(array( 2,  2), array( 4,  1), array( 6,  2), array( 6,  2)), //10
+            array(array( 4,  0), array( 1,  4), array( 4,  4), array( 3,  8)),
+            array(array( 2,  2), array( 6,  2), array( 4,  6), array( 7,  4)),
+            array(array( 4,  0), array( 8,  1), array( 8,  4), array(12,  4)),
+            array(array( 3,  1), array( 4,  5), array(11,  5), array(11,  5)),
+            array(array( 5,  1), array( 5,  5), array( 5,  7), array(11,  7)), //15
+            array(array( 5,  1), array( 7,  3), array(15,  2), array( 3, 13)),
+            array(array( 1,  5), array(10,  1), array( 1, 15), array( 2, 17)),
+            array(array( 5,  1), array( 9,  4), array(17,  1), array( 2, 19)),
+            array(array( 3,  4), array( 3, 11), array(17,  4), array( 9, 16)),
+            array(array( 3,  5), array( 3, 13), array(15,  5), array(15, 10)), //20
+            array(array( 4,  4), array(17,  0), array(17,  6), array(19,  6)),
+            array(array( 2,  7), array(17,  0), array( 7, 16), array(34,  0)),
+            array(array( 4,  5), array( 4, 14), array(11, 14), array(16, 14)),
+            array(array( 6,  4), array( 6, 14), array(11, 16), array(30,  2)),
+            array(array( 8,  4), array( 8, 13), array( 7, 22), array(22, 13)), //25
+            array(array(10,  2), array(19,  4), array(28,  6), array(33,  4)),
+            array(array( 8,  4), array(22,  3), array( 8, 26), array(12, 28)),
+            array(array( 3, 10), array( 3, 23), array( 4, 31), array(11, 31)),
+            array(array( 7,  7), array(21,  7), array( 1, 37), array(19, 26)),
+            array(array( 5, 10), array(19, 10), array(15, 25), array(23, 25)), //30
+            array(array(13,  3), array( 2, 29), array(42,  1), array(23, 28)),
+            array(array(17,  0), array(10, 23), array(10, 35), array(19, 35)),
+            array(array(17,  1), array(14, 21), array(29, 19), array(11, 46)),
+            array(array(13,  6), array(14, 23), array(44,  7), array(59,  1)),
+            array(array(12,  7), array(12, 26), array(39, 14), array(22, 41)), //35
+            array(array( 6, 14), array( 6, 34), array(46, 10), array( 2, 64)),
+            array(array(17,  4), array(29, 14), array(49, 10), array(24, 46)),
+            array(array( 4, 18), array(13, 32), array(48, 14), array(42, 32)),
+            array(array(20,  4), array(40,  7), array(43, 22), array(10, 67)),
+            array(array(19,  6), array(18, 31), array(34, 34), array(20, 61)),//40
+        );                                                                       
+
+        //----------------------------------------------------------------------
+        // CACHEABLE!!!
+        
+        public static function getEccSpec($version, $level, array &$spec)
+        {
+            if (count($spec) < 5) {
+                $spec = array(0,0,0,0,0);
+            }
+
+            $b1   = self::$eccTable[$version][$level][0];
+            $b2   = self::$eccTable[$version][$level][1];
+            $data = self::getDataLength($version, $level);
+            $ecc  = self::getECCLength($version, $level);
+
+            if($b2 == 0) {
+                $spec[0] = $b1;
+                $spec[1] = (int)($data / $b1);
+                $spec[2] = (int)($ecc / $b1);
+                $spec[3] = 0; 
+                $spec[4] = 0;
+            } else {
+                $spec[0] = $b1;
+                $spec[1] = (int)($data / ($b1 + $b2));
+                $spec[2] = (int)($ecc  / ($b1 + $b2));
+                $spec[3] = $b2;
+                $spec[4] = $spec[1] + 1;
+            }
+        }
+
+        // Alignment pattern ---------------------------------------------------
+
+        // Positions of alignment patterns.
+        // This array includes only the second and the third position of the 
+        // alignment patterns. Rest of them can be calculated from the distance 
+        // between them.
+         
+        // See Table 1 in Appendix E (pp.71) of JIS X0510:2004.
+         
+        public static $alignmentPattern = array(      
+            array( 0,  0),
+            array( 0,  0), array(18,  0), array(22,  0), array(26,  0), array(30,  0), // 1- 5
+            array(34,  0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), // 6-10
+            array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), //11-15
+            array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), //16-20
+            array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), //21-25
+            array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), //26-30
+            array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), //31-35
+            array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58), //35-40
+        );                                                                                  
+
+        
+        /** --------------------------------------------------------------------
+         * Put an alignment marker.
+         * @param frame
+         * @param width
+         * @param ox,oy center coordinate of the pattern
+         */
+        public static function putAlignmentMarker(array &$frame, $ox, $oy)
+        {
+            $finder = array(
+                "\xa1\xa1\xa1\xa1\xa1",
+                "\xa1\xa0\xa0\xa0\xa1",
+                "\xa1\xa0\xa1\xa0\xa1",
+                "\xa1\xa0\xa0\xa0\xa1",
+                "\xa1\xa1\xa1\xa1\xa1"
+            );                        
+            
+            $yStart = $oy-2;         
+            $xStart = $ox-2;
+            
+            for($y=0; $y<5; $y++) {
+                QRstr::set($frame, $xStart, $yStart+$y, $finder[$y]);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function putAlignmentPattern($version, &$frame, $width)
+        {
+            if($version < 2)
+                return;
+
+            $d = self::$alignmentPattern[$version][1] - self::$alignmentPattern[$version][0];
+            if($d < 0) {
+                $w = 2;
+            } else {
+                $w = (int)(($width - self::$alignmentPattern[$version][0]) / $d + 2);
+            }
+
+            if($w * $w - 3 == 1) {
+                $x = self::$alignmentPattern[$version][0];
+                $y = self::$alignmentPattern[$version][0];
+                self::putAlignmentMarker($frame, $x, $y);
+                return;
+            }
+
+            $cx = self::$alignmentPattern[$version][0];
+            for($x=1; $x<$w - 1; $x++) {
+                self::putAlignmentMarker($frame, 6, $cx);
+                self::putAlignmentMarker($frame, $cx,  6);
+                $cx += $d;
+            }
+
+            $cy = self::$alignmentPattern[$version][0];
+            for($y=0; $y<$w-1; $y++) {
+                $cx = self::$alignmentPattern[$version][0];
+                for($x=0; $x<$w-1; $x++) {
+                    self::putAlignmentMarker($frame, $cx, $cy);
+                    $cx += $d;
+                }
+                $cy += $d;
+            }
+        }
+
+        // Version information pattern -----------------------------------------
+
+		// Version information pattern (BCH coded).
+        // See Table 1 in Appendix D (pp.68) of JIS X0510:2004.
+        
+		// size: [QRSPEC_VERSION_MAX - 6]
+		
+        public static $versionPattern = array(
+            0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d,
+            0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9,
+            0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75,
+            0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64,
+            0x27541, 0x28c69
+        );
+
+        //----------------------------------------------------------------------
+        public static function getVersionPattern($version)
+        {
+            if($version < 7 || $version > QRSPEC_VERSION_MAX)
+                return 0;
+
+            return self::$versionPattern[$version -7];
+        }
+
+        // Format information --------------------------------------------------
+        // See calcFormatInfo in tests/test_qrspec.c (orginal qrencode c lib)
+        
+        public static $formatInfo = array(
+            array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976),
+            array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0),
+            array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed),
+            array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b)
+        );
+
+        public static function getFormatInfo($mask, $level)
+        {
+            if($mask < 0 || $mask > 7)
+                return 0;
+                
+            if($level < 0 || $level > 3)
+                return 0;                
+
+            return self::$formatInfo[$level][$mask];
+        }
+
+        // Frame ---------------------------------------------------------------
+        // Cache of initial frames.
+         
+        public static $frames = array();
+
+        /** --------------------------------------------------------------------
+         * Put a finder pattern.
+         * @param frame
+         * @param width
+         * @param ox,oy upper-left coordinate of the pattern
+         */
+        public static function putFinderPattern(&$frame, $ox, $oy)
+        {
+            $finder = array(
+                "\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
+                "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+                "\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
+            );                            
+            
+            for($y=0; $y<7; $y++) {
+                QRstr::set($frame, $ox, $oy+$y, $finder[$y]);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function createFrame($version)
+        {
+            $width = self::$capacity[$version][QRCAP_WIDTH];
+            $frameLine = str_repeat ("\0", $width);
+            $frame = array_fill(0, $width, $frameLine);
+
+            // Finder pattern
+            self::putFinderPattern($frame, 0, 0);
+            self::putFinderPattern($frame, $width - 7, 0);
+            self::putFinderPattern($frame, 0, $width - 7);
+            
+            // Separator
+            $yOffset = $width - 7;
+            
+            for($y=0; $y<7; $y++) {
+                $frame[$y][7] = "\xc0";
+                $frame[$y][$width - 8] = "\xc0";
+                $frame[$yOffset][7] = "\xc0";
+                $yOffset++;
+            }
+            
+            $setPattern = str_repeat("\xc0", 8);
+            
+            QRstr::set($frame, 0, 7, $setPattern);
+            QRstr::set($frame, $width-8, 7, $setPattern);
+            QRstr::set($frame, 0, $width - 8, $setPattern);
+        
+            // Format info
+            $setPattern = str_repeat("\x84", 9);
+            QRstr::set($frame, 0, 8, $setPattern);
+            QRstr::set($frame, $width - 8, 8, $setPattern, 8);
+            
+            $yOffset = $width - 8;
+
+            for($y=0; $y<8; $y++,$yOffset++) {
+                $frame[$y][8] = "\x84";
+                $frame[$yOffset][8] = "\x84";
+            }
+
+            // Timing pattern  
+            
+            for($i=1; $i<$width-15; $i++) {
+                $frame[6][7+$i] = chr(0x90 | ($i & 1));
+                $frame[7+$i][6] = chr(0x90 | ($i & 1));
+            }
+            
+            // Alignment pattern  
+            self::putAlignmentPattern($version, $frame, $width);
+            
+            // Version information 
+            if($version >= 7) {
+                $vinf = self::getVersionPattern($version);
+
+                $v = $vinf;
+                
+                for($x=0; $x<6; $x++) {
+                    for($y=0; $y<3; $y++) {
+                        $frame[($width - 11)+$y][$x] = chr(0x88 | ($v & 1));
+                        $v = $v >> 1;
+                    }
+                }
+
+                $v = $vinf;
+                for($y=0; $y<6; $y++) {
+                    for($x=0; $x<3; $x++) {
+                        $frame[$y][$x+($width - 11)] = chr(0x88 | ($v & 1));
+                        $v = $v >> 1;
+                    }
+                }
+            }
+    
+            // and a little bit...  
+            $frame[$width - 8][8] = "\x81";
+            
+            return $frame;
+        }
+
+        //----------------------------------------------------------------------
+        public static function debug($frame, $binary_mode = false)
+        {
+            if ($binary_mode) {
+            
+                    foreach ($frame as &$frameLine) {
+                        $frameLine = join('<span class="m">&nbsp;&nbsp;</span>', explode('0', $frameLine));
+                        $frameLine = join('&#9608;&#9608;', explode('1', $frameLine));
+                    }
+                    
+                    ?>
+                <style>
+                    .m { background-color: white; }
+                </style>
+                <?php
+                    echo '<pre><tt><br/ ><br/ ><br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
+                    echo join("<br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;", $frame);
+                    echo '</tt></pre><br/ ><br/ ><br/ ><br/ ><br/ ><br/ >';
+            
+            } else {
+            
+                foreach ($frame as &$frameLine) {
+                    $frameLine = join('<span class="m">&nbsp;</span>',  explode("\xc0", $frameLine));
+                    $frameLine = join('<span class="m">&#9618;</span>', explode("\xc1", $frameLine));
+                    $frameLine = join('<span class="p">&nbsp;</span>',  explode("\xa0", $frameLine));
+                    $frameLine = join('<span class="p">&#9618;</span>', explode("\xa1", $frameLine));
+                    $frameLine = join('<span class="s">&#9671;</span>', explode("\x84", $frameLine)); //format 0
+                    $frameLine = join('<span class="s">&#9670;</span>', explode("\x85", $frameLine)); //format 1
+                    $frameLine = join('<span class="x">&#9762;</span>', explode("\x81", $frameLine)); //special bit
+                    $frameLine = join('<span class="c">&nbsp;</span>',  explode("\x90", $frameLine)); //clock 0
+                    $frameLine = join('<span class="c">&#9719;</span>', explode("\x91", $frameLine)); //clock 1
+                    $frameLine = join('<span class="f">&nbsp;</span>',  explode("\x88", $frameLine)); //version
+                    $frameLine = join('<span class="f">&#9618;</span>', explode("\x89", $frameLine)); //version
+                    $frameLine = join('&#9830;', explode("\x01", $frameLine));
+                    $frameLine = join('&#8901;', explode("\0", $frameLine));
+                }
+                
+                ?>
+                <style>
+                    .p { background-color: yellow; }
+                    .m { background-color: #00FF00; }
+                    .s { background-color: #FF0000; }
+                    .c { background-color: aqua; }
+                    .x { background-color: pink; }
+                    .f { background-color: gold; }
+                </style>
+                <?php
+                echo "<pre><tt>";
+                echo join("<br/ >", $frame);
+                echo "</tt></pre>";
+            
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function serial($frame)
+        {
+            return gzcompress(join("\n", $frame), 9);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function unserial($code)
+        {
+            return explode("\n", gzuncompress($code));
+        }
+        
+        //----------------------------------------------------------------------
+        public static function newFrame($version)
+        {
+            if($version < 1 || $version > QRSPEC_VERSION_MAX) 
+                return null;
+
+            if(!isset(self::$frames[$version])) {
+                
+                $fileName = QR_CACHE_DIR.'frame_'.$version.'.dat';
+                
+                if (QR_CACHEABLE) {
+                    if (file_exists($fileName)) {
+                        self::$frames[$version] = self::unserial(file_get_contents($fileName));
+                    } else {
+                        self::$frames[$version] = self::createFrame($version);
+                        file_put_contents($fileName, self::serial(self::$frames[$version]));
+                    }
+                } else {
+                    self::$frames[$version] = self::createFrame($version);
+                }
+            }
+            
+            if(is_null(self::$frames[$version]))
+                return null;
+
+            return self::$frames[$version];
+        }
+
+        //----------------------------------------------------------------------
+        public static function rsBlockNum($spec)     { return $spec[0] + $spec[3]; }
+        public static function rsBlockNum1($spec)    { return $spec[0]; }
+        public static function rsDataCodes1($spec)   { return $spec[1]; }
+        public static function rsEccCodes1($spec)    { return $spec[2]; }
+        public static function rsBlockNum2($spec)    { return $spec[3]; }
+        public static function rsDataCodes2($spec)   { return $spec[4]; }
+        public static function rsEccCodes2($spec)    { return $spec[2]; }
+        public static function rsDataLength($spec)   { return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);    }
+        public static function rsEccLength($spec)    { return ($spec[0] + $spec[3]) * $spec[2]; }
+        
+    }
\ No newline at end of file
diff --git a/webui/system/helper/phpqrcode/qrsplit.php b/webui/system/helper/phpqrcode/qrsplit.php
new file mode 100644
index 00000000..d75b8273
--- /dev/null
+++ b/webui/system/helper/phpqrcode/qrsplit.php
@@ -0,0 +1,311 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Input splitting classes
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * The following data / specifications are taken from
+ * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
+ *  or
+ * "Automatic identification and data capture techniques -- 
+ *  QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+    class QRsplit {
+
+        public $dataStr = '';
+        public $input;
+        public $modeHint;
+
+        //----------------------------------------------------------------------
+        public function __construct($dataStr, $input, $modeHint) 
+        {
+            $this->dataStr  = $dataStr;
+            $this->input    = $input;
+            $this->modeHint = $modeHint;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function isdigitat($str, $pos)
+        {    
+            if ($pos >= strlen($str))
+                return false;
+            
+            return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
+        }
+        
+        //----------------------------------------------------------------------
+        public static function isalnumat($str, $pos)
+        {
+            if ($pos >= strlen($str))
+                return false;
+                
+            return (QRinput::lookAnTable(ord($str[$pos])) >= 0);
+        }
+
+        //----------------------------------------------------------------------
+        public function identifyMode($pos)
+        {
+            if ($pos >= strlen($this->dataStr)) 
+                return QR_MODE_NUL;
+                
+            $c = $this->dataStr[$pos];
+            
+            if(self::isdigitat($this->dataStr, $pos)) {
+                return QR_MODE_NUM;
+            } else if(self::isalnumat($this->dataStr, $pos)) {
+                return QR_MODE_AN;
+            } else if($this->modeHint == QR_MODE_KANJI) {
+            
+                if ($pos+1 < strlen($this->dataStr)) 
+                {
+                    $d = $this->dataStr[$pos+1];
+                    $word = (ord($c) << 8) | ord($d);
+                    if(($word >= 0x8140 && $word <= 0x9ffc) || ($word >= 0xe040 && $word <= 0xebbf)) {
+                        return QR_MODE_KANJI;
+                    }
+                }
+            }
+
+            return QR_MODE_8;
+        } 
+        
+        //----------------------------------------------------------------------
+        public function eatNum()
+        {
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 0;
+            while(self::isdigitat($this->dataStr, $p)) {
+                $p++;
+            }
+            
+            $run = $p;
+            $mode = $this->identifyMode($p);
+            
+            if($mode == QR_MODE_8) {
+                $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
+                     + QRinput::estimateBitsMode8(1)         // + 4 + l8
+                     - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
+                if($dif > 0) {
+                    return $this->eat8();
+                }
+            }
+            if($mode == QR_MODE_AN) {
+                $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
+                     + QRinput::estimateBitsModeAn(1)        // + 4 + la
+                     - QRinput::estimateBitsModeAn($run + 1);// - 4 - la
+                if($dif > 0) {
+                    return $this->eatAn();
+                }
+            }
+            
+            $ret = $this->input->append(QR_MODE_NUM, $run, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+        
+        //----------------------------------------------------------------------
+        public function eatAn()
+        {
+            $la = QRspec::lengthIndicator(QR_MODE_AN,  $this->input->getVersion());
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 0;
+            
+            while(self::isalnumat($this->dataStr, $p)) {
+                if(self::isdigitat($this->dataStr, $p)) {
+                    $q = $p;
+                    while(self::isdigitat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    
+                    $dif = QRinput::estimateBitsModeAn($p) // + 4 + la
+                         + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
+                         - QRinput::estimateBitsModeAn($q); // - 4 - la
+                         
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else {
+                    $p++;
+                }
+            }
+
+            $run = $p;
+
+            if(!self::isalnumat($this->dataStr, $p)) {
+                $dif = QRinput::estimateBitsModeAn($run) + 4 + $la
+                     + QRinput::estimateBitsMode8(1) // + 4 + l8
+                      - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
+                if($dif > 0) {
+                    return $this->eat8();
+                }
+            }
+
+            $ret = $this->input->append(QR_MODE_AN, $run, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+        
+        //----------------------------------------------------------------------
+        public function eatKanji()
+        {
+            $p = 0;
+            
+            while($this->identifyMode($p) == QR_MODE_KANJI) {
+                $p += 2;
+            }
+            
+            $ret = $this->input->append(QR_MODE_KANJI, $p, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+
+        //----------------------------------------------------------------------
+        public function eat8()
+        {
+            $la = QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 1;
+            $dataStrLen = strlen($this->dataStr);
+            
+            while($p < $dataStrLen) {
+                
+                $mode = $this->identifyMode($p);
+                if($mode == QR_MODE_KANJI) {
+                    break;
+                }
+                if($mode == QR_MODE_NUM) {
+                    $q = $p;
+                    while(self::isdigitat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    $dif = QRinput::estimateBitsMode8($p) // + 4 + l8
+                         + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
+                         - QRinput::estimateBitsMode8($q); // - 4 - l8
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else if($mode == QR_MODE_AN) {
+                    $q = $p;
+                    while(self::isalnumat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    $dif = QRinput::estimateBitsMode8($p)  // + 4 + l8
+                         + QRinput::estimateBitsModeAn($q - $p) + 4 + $la
+                         - QRinput::estimateBitsMode8($q); // - 4 - l8
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else {
+                    $p++;
+                }
+            }
+
+            $run = $p;
+            $ret = $this->input->append(QR_MODE_8, $run, str_split($this->dataStr));
+            
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+
+        //----------------------------------------------------------------------
+        public function splitString()
+        {
+            while (strlen($this->dataStr) > 0)
+            {
+                if($this->dataStr == '')
+                    return 0;
+
+                $mode = $this->identifyMode(0);
+                
+                switch ($mode) {
+                    case QR_MODE_NUM: $length = $this->eatNum(); break;
+                    case QR_MODE_AN:  $length = $this->eatAn(); break;
+                    case QR_MODE_KANJI:
+                        if ($hint == QR_MODE_KANJI)
+                                $length = $this->eatKanji();
+                        else    $length = $this->eat8();
+                        break;
+                    default: $length = $this->eat8(); break;
+                
+                }
+
+                if($length == 0) return 0;
+                if($length < 0)  return -1;
+                
+                $this->dataStr = substr($this->dataStr, $length);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function toUpper()
+        {
+            $stringLen = strlen($this->dataStr);
+            $p = 0;
+            
+            while ($p<$stringLen) {
+                $mode = self::identifyMode(substr($this->dataStr, $p), $this->modeHint);
+                if($mode == QR_MODE_KANJI) {
+                    $p += 2;
+                } else {
+                    if (ord($this->dataStr[$p]) >= ord('a') && ord($this->dataStr[$p]) <= ord('z')) {
+                        $this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
+                    }
+                    $p++;
+                }
+            }
+
+            return $this->dataStr;
+        }
+
+        //----------------------------------------------------------------------
+        public static function splitStringToQRinput($string, QRinput $input, $modeHint, $casesensitive = true)
+        {
+            if(is_null($string) || $string == '\0' || $string == '') {
+                throw new Exception('empty string!!!');
+            }
+
+            $split = new QRsplit($string, $input, $modeHint);
+            
+            if(!$casesensitive)
+                $split->toUpper();
+                
+            return $split->splitString();
+        }
+    }
\ No newline at end of file
diff --git a/webui/system/helper/phpqrcode/qrtools.php b/webui/system/helper/phpqrcode/qrtools.php
new file mode 100644
index 00000000..3012db49
--- /dev/null
+++ b/webui/system/helper/phpqrcode/qrtools.php
@@ -0,0 +1,172 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Toolset, handy and debug utilites.
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+    class QRtools {
+    
+        //----------------------------------------------------------------------
+        public static function binarize($frame)
+        {
+            $len = count($frame);
+            foreach ($frame as &$frameLine) {
+                
+                for($i=0; $i<$len; $i++) {
+                    $frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
+                }
+            }
+            
+            return $frame;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function tcpdfBarcodeArray($code, $mode = 'QR,L', $tcPdfVersion = '4.5.037')
+        {
+            $barcode_array = array();
+            
+            if (!is_array($mode))
+                $mode = explode(',', $mode);
+                
+            $eccLevel = 'L';
+                
+            if (count($mode) > 1) {
+                $eccLevel = $mode[1];
+            }
+                
+            $qrTab = QRcode::text($code, false, $eccLevel);
+            $size = count($qrTab);
+                
+            $barcode_array['num_rows'] = $size;
+            $barcode_array['num_cols'] = $size;
+            $barcode_array['bcode'] = array();
+                
+            foreach ($qrTab as $line) {
+                $arrAdd = array();
+                foreach(str_split($line) as $char)
+                    $arrAdd[] = ($char=='1')?1:0;
+                $barcode_array['bcode'][] = $arrAdd;
+            }
+                    
+            return $barcode_array;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function clearCache()
+        {
+            self::$frames = array();
+        }
+        
+        //----------------------------------------------------------------------
+        public static function buildCache()
+        {
+			QRtools::markTime('before_build_cache');
+			
+			$mask = new QRmask();
+            for ($a=1; $a <= QRSPEC_VERSION_MAX; $a++) {
+                $frame = QRspec::newFrame($a);
+                if (QR_IMAGE) {
+                    $fileName = QR_CACHE_DIR.'frame_'.$a.'.png';
+                    QRimage::png(self::binarize($frame), $fileName, 1, 0);
+                }
+				
+				$width = count($frame);
+				$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+				for ($maskNo=0; $maskNo<8; $maskNo++)
+					$mask->makeMaskNo($maskNo, $width, $frame, $bitMask, true);
+            }
+			
+			QRtools::markTime('after_build_cache');
+        }
+
+        //----------------------------------------------------------------------
+        public static function log($outfile, $err)
+        {
+            if (QR_LOG_DIR !== false) {
+                if ($err != '') {
+                    if ($outfile !== false) {
+                        file_put_contents(QR_LOG_DIR.basename($outfile).'-errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
+                    } else {
+                        file_put_contents(QR_LOG_DIR.'errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
+                    }
+                }    
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public static function dumpMask($frame) 
+        {
+            $width = count($frame);
+            for($y=0;$y<$width;$y++) {
+                for($x=0;$x<$width;$x++) {
+                    echo ord($frame[$y][$x]).',';
+                }
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public static function markTime($markerId)
+        {
+            list($usec, $sec) = explode(" ", microtime());
+            $time = ((float)$usec + (float)$sec);
+            
+            if (!isset($GLOBALS['qr_time_bench']))
+                $GLOBALS['qr_time_bench'] = array();
+            
+            $GLOBALS['qr_time_bench'][$markerId] = $time;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function timeBenchmark()
+        {
+            self::markTime('finish');
+        
+            $lastTime = 0;
+            $startTime = 0;
+            $p = 0;
+
+            echo '<table cellpadding="3" cellspacing="1">
+                    <thead><tr style="border-bottom:1px solid silver"><td colspan="2" style="text-align:center">BENCHMARK</td></tr></thead>
+                    <tbody>';
+
+            foreach($GLOBALS['qr_time_bench'] as $markerId=>$thisTime) {
+                if ($p > 0) {
+                    echo '<tr><th style="text-align:right">till '.$markerId.': </th><td>'.number_format($thisTime-$lastTime, 6).'s</td></tr>';
+                } else {
+                    $startTime = $thisTime;
+                }
+                
+                $p++;
+                $lastTime = $thisTime;
+            }
+            
+            echo '</tbody><tfoot>
+                <tr style="border-top:2px solid black"><th style="text-align:right">TOTAL: </th><td>'.number_format($lastTime-$startTime, 6).'s</td></tr>
+            </tfoot>
+            </table>';
+        }
+        
+    }
+    
+    //##########################################################################
+    
+    QRtools::markTime('start');
+    
\ No newline at end of file
diff --git a/webui/system/helper/phpqrcode/tools/merge.bat b/webui/system/helper/phpqrcode/tools/merge.bat
new file mode 100644
index 00000000..b60a4853
--- /dev/null
+++ b/webui/system/helper/phpqrcode/tools/merge.bat
@@ -0,0 +1,2 @@
+php ./merge.php
+pause
\ No newline at end of file
diff --git a/webui/system/helper/phpqrcode/tools/merge.php b/webui/system/helper/phpqrcode/tools/merge.php
new file mode 100644
index 00000000..19d338b3
--- /dev/null
+++ b/webui/system/helper/phpqrcode/tools/merge.php
@@ -0,0 +1,70 @@
+<?php
+
+/*
+ * PHP QR Code encoder
+ *
+ * Tool for merging all library files into one, simpler to incorporate.
+ * 
+ * MAKE SURE THAT RESULTING PHPQRCode.php (and its dir) ARE WRITABLE!
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    $QR_BASEDIR = dirname(__FILE__).DIRECTORY_SEPARATOR.'..'.DIRECTORY_SEPARATOR;
+    $QR_TOOLSDIR = dirname(__FILE__).DIRECTORY_SEPARATOR;
+    
+    $outputFile = $QR_BASEDIR.'phpqrcode.php';
+    
+    // Required libs
+    
+    $fileList = array(
+        $QR_BASEDIR.'qrconst.php',
+        $QR_TOOLSDIR.'merged_config.php',
+        $QR_BASEDIR.'qrtools.php',
+        $QR_BASEDIR.'qrspec.php',
+        $QR_BASEDIR.'qrimage.php',
+        $QR_BASEDIR.'qrinput.php',
+        $QR_BASEDIR.'qrbitstream.php',
+        $QR_BASEDIR.'qrsplit.php',
+        $QR_BASEDIR.'qrrscode.php',
+        $QR_BASEDIR.'qrmask.php',
+        $QR_BASEDIR.'qrencode.php'
+    );
+    
+    $headerFile = $QR_TOOLSDIR.'merged_header.php';
+    $versionFile = $QR_BASEDIR.'VERSION';
+    
+    $outputCode = '';
+    
+    foreach($fileList as $fileName) {
+        $outputCode .= "\n\n".'//---- '.basename($fileName).' -----------------------------'."\n\n";
+        $anotherCode = file_get_contents($fileName);
+        $anotherCode = preg_replace ('/^<\?php/', '', $anotherCode);
+        $anotherCode = preg_replace ('/\?>\*$/', '', $anotherCode);
+        $outputCode .= "\n\n".$anotherCode."\n\n";
+    }
+    
+	$versionDataEx = explode("\n", file_get_contents($versionFile));
+	
+    $outputContents = file_get_contents($headerFile);
+    $outputContents .= "\n\n/*\n * Version: ".trim($versionDataEx[0])."\n * Build: ".trim($versionDataEx[1])."\n */\n\n";
+    $outputContents .= $outputCode;
+    
+    file_put_contents($outputFile, $outputContents);
+    
+    
\ No newline at end of file
diff --git a/webui/system/helper/phpqrcode/tools/merge.sh b/webui/system/helper/phpqrcode/tools/merge.sh
new file mode 100644
index 00000000..e4c2fbcb
--- /dev/null
+++ b/webui/system/helper/phpqrcode/tools/merge.sh
@@ -0,0 +1,2 @@
+#!/bin/sh
+php ./merge.php
\ No newline at end of file
diff --git a/webui/system/helper/phpqrcode/tools/merged_config.php b/webui/system/helper/phpqrcode/tools/merged_config.php
new file mode 100644
index 00000000..55ddb450
--- /dev/null
+++ b/webui/system/helper/phpqrcode/tools/merged_config.php
@@ -0,0 +1,17 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Config file, tuned-up for merged verion
+ */
+     
+    define('QR_CACHEABLE', false);       // use cache - more disk reads but less CPU power, masks and format templates are stored there
+    define('QR_CACHE_DIR', false);       // used when QR_CACHEABLE === true
+    define('QR_LOG_DIR', false);         // default error logs dir   
+    
+    define('QR_FIND_BEST_MASK', true);                                                          // if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
+    define('QR_FIND_FROM_RANDOM', 2);                                                       // if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
+    define('QR_DEFAULT_MASK', 2);                                                               // when QR_FIND_BEST_MASK === false
+                                                  
+    define('QR_PNG_MAXIMUM_SIZE',  1024);                                                       // maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images
+                                                  
\ No newline at end of file
diff --git a/webui/system/helper/phpqrcode/tools/merged_header.php b/webui/system/helper/phpqrcode/tools/merged_header.php
new file mode 100644
index 00000000..25805e56
--- /dev/null
+++ b/webui/system/helper/phpqrcode/tools/merged_header.php
@@ -0,0 +1,36 @@
+<?php
+
+/*
+ * PHP QR Code encoder
+ *
+ * This file contains MERGED version of PHP QR Code library.
+ * It was auto-generated from full version for your convenience.
+ *
+ * This merged version was configured to not requre any external files,
+ * with disabled cache, error loging and weker but faster mask matching.
+ * If you need tune it up please use non-merged version.
+ *
+ * For full version, documentation, examples of use please visit:
+ *
+ *    http://phpqrcode.sourceforge.net/
+ *    https://sourceforge.net/projects/phpqrcode/
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+ 
\ No newline at end of file
diff --git a/webui/view/javascript/piler-in.js b/webui/view/javascript/piler-in.js
index 6292c620..5c3b6e66 100644
--- a/webui/view/javascript/piler-in.js
+++ b/webui/view/javascript/piler-in.js
@@ -1037,6 +1037,39 @@ var Piler =
     {
        var colour = $('#' + srcid).val();
        $('#' + dstid).css('background', colour);
+    },
+
+
+    new_qr: function()
+    {
+
+        Piler.log("[new_qr]");
+
+        document.body.style.cursor = 'wait';
+
+        jQuery.ajax('qr.php?refresh=1', { cache: true })
+        .done( function(a) {
+           $('#QR').html(a);
+           document.body.style.cursor = 'default';
+        })
+        .fail(function(a, b) { alert("Problem retrieving XML data:" + b) });
+
+    },
+
+
+    toggle_ga: function()
+    {
+        var ga = 0;
+
+        if(document.getElementById('ga_enabled').checked == 1){ ga = 1; }
+
+        Piler.log("[toggle GA]", ga);
+
+        jQuery.ajax('qr.php?toggle=' + ga, { cache: true })
+        .done( function(a) {
+        })
+        .fail(function(a, b) { alert("Problem retrieving XML data:" + b) });
+
     }
 
 
diff --git a/webui/view/theme/default/templates/common/menu.tpl b/webui/view/theme/default/templates/common/menu.tpl
index 3559af5f..40d4d39f 100644
--- a/webui/view/theme/default/templates/common/menu.tpl
+++ b/webui/view/theme/default/templates/common/menu.tpl
@@ -73,7 +73,7 @@
     <?php } ?>
 
                     <li class="dropdown">
-                        <a href="#" class="dropdown-toggle" data-toggle="dropdown"><i class="icon-user"></i>&nbsp;<?php if(isset($_SESSION['realname'])) { print $_SESSION['realname']; ?>&nbsp;<?php } ?><b class="caret"></b></a>
+                        <a href="#" class="dropdown-toggle" data-toggle="dropdown"><i class="icon-user"></i>&nbsp;<?php if($realname) { print $realname; ?>&nbsp;<?php } ?><b class="caret"></b></a>
                         <ul class="dropdown-menu">
     <?php if($settings['support_link']) { ?>
                             <li><a href="<?php print $settings['support_link']; ?>" target="_blank" <?php if($settings['text_colour']) { ?> style="color: <?php print $settings['text_colour']; ?>;"<?php } ?>><i class="icon-question-sign"></i>&nbsp;<?php print $text_contact_support; ?></a></li>
diff --git a/webui/view/theme/default/templates/login/ga.tpl b/webui/view/theme/default/templates/login/ga.tpl
new file mode 100644
index 00000000..0ea2f882
--- /dev/null
+++ b/webui/view/theme/default/templates/login/ga.tpl
@@ -0,0 +1,58 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <title><?php if($title_prefix) { print $title_prefix; ?> | <?php } ?><?php print $title; ?></title>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <?php if(SITE_KEYWORDS) { ?><meta name="keywords" content="<?php print SITE_KEYWORDS; ?>" /><?php } ?>
+    <?php if(SITE_DESCRIPTION) { ?><meta name="description" content="<?php print SITE_DESCRIPTION; ?>" /><?php } ?>
+    <?php if(PROVIDED_BY) { ?><meta name="author" content="<?php print PROVIDED_BY; ?>" /><?php } ?>
+
+    <link href="/view/theme/default/assets/css/metro-bootstrap.css" rel="stylesheet">
+
+    <!-- HTML5 shim, for IE6-8 support of HTML5 elements -->
+    <!-- original location: http://html5shim.googlecode.com/svn/trunk/html5.js -->
+    <!--[if lt IE 9]>
+      <script src="/view/theme/default/assets/js/html5.js"></script>
+    <![endif]-->
+
+    <!-- Fav and touch icons -->
+    <link rel="apple-touch-icon-precomposed" sizes="144x144" href="/view/theme/default/assets/ico/apple-touch-icon-144-precomposed.png">
+    <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/view/theme/default/assets/ico/apple-touch-icon-114-precomposed.png">
+    <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/view/theme/default/assets/ico/apple-touch-icon-72-precomposed.png">
+    <link rel="apple-touch-icon-precomposed" href="/view/theme/default/assets/ico/apple-touch-icon-57-precomposed.png">
+    <?php if(BRANDING_FAVICON) { ?><link rel="shortcut icon" href="<?php print BRANDING_FAVICON; ?>" /><?php } ?>
+  </head>
+
+
+<body class="loginpage">
+
+
+    <div id="logincontainer" class="container">
+        <div id="logo-lg"><img src="<?php print SITE_URL; ?><?php print SITE_LOGO_LG; ?>" alt="Archive Logo Image" title="<?php print $text_login; ?>" /></div>
+
+        <form name="login" action="index.php?route=login/ga" method="post" class="form-signin">
+
+            <h2 class="form-signin-heading"><?php print $text_enter_google_authenticator_code; ?></h2>
+
+            <?php if(isset($x)){ ?><p class="alert alert-error lead"><?php print $x; ?></p><?php } ?>
+            <input type="hidden" name="relocation" value="<?php if(isset($_GET['route']) && !preg_match("/^login/", $_GET['route']) ) { if(isset($_SERVER['REDIRECT_URL'])) { print $_SERVER['REDIRECT_URL']; } else { print $_SERVER['QUERY_STRING']; } } ?>" />
+
+            <input type="password" class="input-block-level bold" id="ga_code" name="ga_code" placeholder="<?php print $text_google_authenticator_code; ?>">
+
+            <button class="btn btn-large btn-primary" type="submit" value="<?php print $text_submit; ?>"><?php print $text_submit; ?></button>
+
+        </form>
+
+        <div id="compatibility" class="well well-large">
+            <p><?php print COMPATIBILITY; ?></p>
+        </div>
+
+   </div>
+
+
+
+<?php if(TRACKING_CODE) { print TRACKING_CODE; } ?>
+
+</body>
+</html>
diff --git a/webui/view/theme/default/templates/user/settings.tpl b/webui/view/theme/default/templates/user/settings.tpl
index be774c34..7b160ee1 100644
--- a/webui/view/theme/default/templates/user/settings.tpl
+++ b/webui/view/theme/default/templates/user/settings.tpl
@@ -93,6 +93,29 @@
     
 </form>
 
+
+<form method="post" name="setqr" class="form-horizontal">
+
+   <h4><?php print $text_google_authenticator_settings; ?></h4>
+
+    <div class="control-group">
+        <label class="control-label" for="ga_enabled"><?php print $text_enable; ?></label>
+        <div class="controls">
+           <input type="checkbox" name="ga_enabled" id="ga_enabled" onclick="Piler.toggle_ga();" <?php if($ga['ga_enabled'] == 1) { ?>checked="checked"<?php } ?> />
+        </div>
+    </div>
+
+    <div class="control-group">
+        <label class="control-label" for="ga_secret"><?php print $text_qr_code; ?></label>
+        <div id="QR" class="controls">
+           <?php print $ga['ga_secret']; ?> <a href="#" onclick="Piler.new_qr(); return false;"> <?php print $text_refresh_qr_code; ?></a><br /><img src="qr.php?ts=<?php print time(); ?>" />
+        </div>
+    </div>
+
+</form>
+
+
+
 <p>&nbsp;</p>
 
 <?php if(PASSWORD_CHANGE_ENABLED == 1) { ?>
diff --git a/webui/view/theme/mobile/templates/common/menu.tpl b/webui/view/theme/mobile/templates/common/menu.tpl
index 42d1a9fe..e7f1c527 100644
--- a/webui/view/theme/mobile/templates/common/menu.tpl
+++ b/webui/view/theme/mobile/templates/common/menu.tpl
@@ -69,7 +69,7 @@
              <?php if($settings['branding_url']) { ?><li><a href="<?php print $settings['branding_url']; ?>" target="_blank" <?php if($settings['text_colour']) { ?> style="color: <?php print $settings['text_colour']; ?>;"<?php } ?>><i class="icon-share-alt icon-white"></i> <?php print $settings['branding_text']; ?></a></li><?php } ?>
 
              <li class="dropdown">
-                <a href="#" class="dropdown-toggle" data-toggle="dropdown" <?php if($settings['text_colour']) { ?> style="color: <?php print $settings['text_colour']; ?>;"<?php } ?>><?php print $_SESSION['realname']; ?> <i class="icon-user icon-white"></i> <b class="caret"></b></a>
+                <a href="#" class="dropdown-toggle" data-toggle="dropdown" <?php if($settings['text_colour']) { ?> style="color: <?php print $settings['text_colour']; ?>;"<?php } ?>><?php print $realname; ?> <i class="icon-user icon-white"></i> <b class="caret"></b></a>
                 <ul class="dropdown-menu">
                    <li><a href="settings.php"><i class="icon-cog"></i>&nbsp;<?php print $text_settings; ?></a></li>
                    <li class="divider"></li>
diff --git a/webui/view/theme/mobile/templates/login/ga.tpl b/webui/view/theme/mobile/templates/login/ga.tpl
new file mode 100644
index 00000000..b370cb07
--- /dev/null
+++ b/webui/view/theme/mobile/templates/login/ga.tpl
@@ -0,0 +1,61 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="hu" lang="hu">
+
+<head>
+   <title><?php if($title_prefix) { print $title_prefix; ?> | <?php } ?><?php print $title; ?></title>
+   <meta http-equiv="content-type" content="text/html; charset=utf-8" />
+   <meta http-equiv="Content-Language" content="en" />
+   <?php if(SITE_KEYWORDS) { ?><meta name="keywords" content="<?php print SITE_KEYWORDS; ?>" /><?php } ?>
+   <?php if(SITE_DESCRIPTION) { ?><meta name="description" content="<?php print SITE_DESCRIPTION; ?>" /><?php } ?>
+   <?php if(PROVIDED_BY) { ?><meta name="author" content="<?php print PROVIDED_BY; ?>" /><?php } ?>
+   <meta name="rating" content="general" />
+   <meta name="robots" content="all" />
+
+   <meta name="viewport" content="width=device-width, initial-scale=1.0">
+
+   <link href="/bootstrap/css/bootstrap<?php print BOOTSTRAP_THEME; ?>.min.css" rel="stylesheet" media="screen">
+   <link href="/bootstrap/css/bootstrap-responsive.min.css" rel="stylesheet" media="screen">
+
+   <link rel="stylesheet" type="text/css" href="/view/theme/<?php print THEME; ?>/stylesheet/jquery-ui-custom.min.css" />
+   <link rel="stylesheet" type="text/css" href="/view/theme/<?php print THEME; ?>/stylesheet/style-<?php print THEME; ?>.css" />
+
+   <script type="text/javascript" src="/view/javascript/jquery.min.js"></script>
+   <script type="text/javascript" src="/view/javascript/jquery-ui-custom.min.js"></script>
+   <script type="text/javascript" src="/view/javascript/bootstrap.min.js"></script>
+   <script type="text/javascript" src="/view/javascript/rc-splitter.js"></script>
+   <script type="text/javascript" src="/view/javascript/piler.js"></script>
+
+   <?php if(BRANDING_FAVICON) { ?><link rel="shortcut icon" href="<?php print BRANDING_FAVICON; ?>" /><?php } ?>
+</head>
+
+<body class="loginpage">
+
+
+    <div id="logincontainer" class="container">
+        <div id="logo-lg"><img src="<?php print SITE_URL; ?><?php print SITE_LOGO_LG; ?>" alt="Archive Logo Image" title="<?php print $text_login; ?>" /></div>
+
+        <form name="login" action="index.php?route=login/ga" method="post" class="form-signin">
+
+            <h2 class="form-signin-heading"><?php print $text_enter_google_authenticator_code; ?></h2>
+
+            <?php if(isset($x)){ ?><p class="alert alert-error lead"><?php print $x; ?></p><?php } ?>
+            <input type="hidden" name="relocation" value="<?php if(isset($_GET['route']) && !preg_match("/^login/", $_GET['route']) ) { if(isset($_SERVER['REDIRECT_URL'])) { print $_SERVER['REDIRECT_URL']; } else { print $_SERVER['QUERY_STRING']; } } ?>" />
+
+            <input type="password" class="input-block-level bold" name="ga_code" placeholder="<?php print $text_google_authenticator_code; ?>">
+
+            <button class="btn btn-large btn-primary" type="submit" value="<?php print $text_submit; ?>"><?php print $text_submit; ?></button>
+
+        </form>
+
+        <div id="compatibility" class="well well-large">
+            <p><?php print COMPATIBILITY; ?></p>
+        </div>
+
+   </div>
+
+
+
+<?php if(TRACKING_CODE) { print TRACKING_CODE; } ?>
+
+</body>
+</html>
diff --git a/webui/view/theme/mobile/templates/user/settings.tpl b/webui/view/theme/mobile/templates/user/settings.tpl
index 82223d1a..1a164a17 100644
--- a/webui/view/theme/mobile/templates/user/settings.tpl
+++ b/webui/view/theme/mobile/templates/user/settings.tpl
@@ -102,12 +102,38 @@
       </div>
 
    </div>
-
 </form>
 
+<p>&nbsp;</p>
+
+
+
+   <div id="search">
+
+      <h4><?php print $text_google_authenticator_settings; ?></h4>
+
+      <div id="search1">
+
+         <div class="row">
+                <div class="logincell"><?php print $text_enable; ?>:</div>
+                <div class="logincell"><input type="checkbox" name="ga_enabled" id="ga_enabled" onclick="Piler.toggle_ga();" <?php if($ga['ga_enabled'] == 1) { ?>checked="checked"<?php } ?> /></div>
+         </div>
+
+         <div class="row">
+                <div class="logincell"><?php print $text_qr_code; ?>:</div>
+                <div id="QR" class="logincell">
+                   <?php print $ga['ga_secret']; ?> <a href="#" onclick="Piler.new_qr(); return false;"><?php print $text_refresh_qr_code; ?></a><br /><img src="qr.php?ts=<?php print time(); ?>" />
+
+                </div>
+         </div>
+   </div>
+
+
 
 <p>&nbsp;</p>
 
+
+
 <?php if(PASSWORD_CHANGE_ENABLED == 1) { ?>
    <div id="search">
       <form method="post" name="pwdchange" action="settings.php" class="formbottom">