/**
  * Save frame url
  *
  * @param
  * @return
  */
 function saveFrameUrl()
 {
     include_once "./Services/Authentication/classes/class.ilSessionIStorage.php";
     $store = new ilSessionIStorage("lm");
     if ($_GET["url"] != "") {
         $store->set("cf_" . $this->lm->getId(), $_GET["url"]);
     } else {
         $store->set("cf_" . $this->lm->getId(), $_GET["url"]);
     }
 }