function saveVote()
 {
     global $ilUser;
     include_once 'Services/Feedback/classes/class.ilFeedback.php';
     $feedback = new ilFeedback();
     $feedback->setId($_GET['fb_id']);
     $feedback->getBarometer();
     $feedback->setVote(ilUtil::stripSlashes($_POST['vote']));
     $feedback->setNote(ilUtil::stripSlashes($_POST['text_answer']));
     if ($feedback->getAnonymous()) {
         $feedback->setUserId(0);
     } else {
         $feedback->setUserId($ilUser->getId());
     }
     $feedback->saveResult();
     $this->ctrl->returnToParent($this);
 }