public function actionGetEventsJSON()
 {
     $start = CRequest::getInt("start");
     $end = CRequest::getInt("end");
     $calendar = CResourcesManager::getCalendarById(CRequest::getInt("calendar_id"));
     $calendar->setStartTime($start);
     $calendar->setEndTime($end);
     $r = array();
     foreach ($calendar->getEvents()->getItems() as $e) {
         $r[] = $e->toArrayForJSON();
     }
     echo json_encode($r);
 }