/**
  * Save access keys
  */
 function saveAccessKeys()
 {
     global $ilCtrl, $lng, $ilAccess;
     if ($ilAccess->checkAccess("write", "", $_GET["ref_id"])) {
         include_once "./Services/Accessibility/classes/class.ilAccessKey.php";
         ilAccessKey::writeKeys(ilUtil::stripSlashesArray($_POST["acckey"]));
         ilUtil::sendSuccess($lng->txt("msg_obj_modified"), true);
     }
     $ilCtrl->redirect($this, "editAccessKeys");
 }