function deliverInfo()
 {
     $id = (int) $_GET["object_id"];
     if (!$id) {
         return;
     }
     include_once 'Modules/BookingManager/classes/class.ilBookingObject.php';
     $obj = new ilBookingObject($id);
     $file = $obj->getFileFullPath();
     if ($file) {
         ilUtil::deliverFile($file, $obj->getFile());
     }
 }