/**
  * @return string
  */
 public function getHtml()
 {
     /**
      * @var $lng    ilLanguage
      * @var $tpl ilTemplate
      */
     global $lng, $tpl;
     if ($this->getSessionReminder()->isActive()) {
         require_once 'Services/jQuery/classes/class.iljQueryUtil.php';
         iljQueryUtil::initjQuery();
         require_once 'Services/YUI/classes/class.ilYuiUtil.php';
         ilYuiUtil::initCookie();
         $tpl->addJavaScript('./Services/Authentication/js/session_reminder.js');
         $reminder_tpl = new ilTemplate('tpl.session_reminder.html', true, true, 'Services/Authentication');
         $reminder_tpl->setVariable('DEBUG', defined('DEVMODE') && DEVMODE ? 1 : 0);
         $reminder_tpl->setVariable('CLIENT_ID', CLIENT_ID);
         $reminder_tpl->setVariable('SESSION_NAME', session_name());
         $reminder_tpl->setVariable('FREQUENCY', 60);
         $reminder_tpl->setVariable('SESSION_ID', session_id());
         $reminder_tpl->setVariable('URL', './sessioncheck.php?client_id=' . CLIENT_ID . '&lang=' . $lng->getLangKey());
         return $reminder_tpl->get();
     }
     return '';
 }