public function posodobi($arg = false)
 {
     //Check if user is logged in
     Session::init();
     $logedin = Session::get("username");
     if ($logedin == False) {
         Session::destroy();
         $redirect = sprintf("location: %sprijava", STATIC_URL);
         header($redirect);
         exit;
     } else {
         //get POST variable
         $state = $_POST['state'];
         $own = $_POST['owner'];
         $escalate = $_POST['escalate'];
         if ($state != "") {
             echo $state, $arg;
             require 'models/zahtevki.php';
             $model = new Zahtevki_Model();
             $userid = Session::get("userid");
             //change ticket state
             $this->view->tickets = $model->spremeni_stanje($arg, $state);
             //own this ticket
             if ($own != "") {
                 $this->view->tickets = $model->own($arg, $userid);
             }
             echo "Zakljucujem ticket...</br>";
             //$this->view->render('user/podrobnosti_zahtevka');
             $redirect = sprintf("location: %szahtevki_admin/uredi/{$arg}", STATIC_URL);
             header($redirect);
             exit;
         } elseif ($escalate != '') {
             require 'models/zahtevki.php';
             $model = new Zahtevki_Model();
             $this->view->tickets = $model->escalate($arg, $escalate);
             $redirect = sprintf("location: %szahtevki_admin", STATIC_URL);
             header($redirect);
             exit;
         } else {
             $redirect = sprintf("location: %szahtevki_admin", STATIC_URL);
             header($redirect);
             exit;
         }
     }
 }