Index: branches/5.2.x/core/units/helpers/ajax_form_helper.php
===================================================================
diff -u -N -r15546 -r15703
--- branches/5.2.x/core/units/helpers/ajax_form_helper.php	(.../ajax_form_helper.php)	(revision 15546)
+++ branches/5.2.x/core/units/helpers/ajax_form_helper.php	(.../ajax_form_helper.php)	(revision 15703)
@@ -71,12 +71,19 @@
 		 * @param kEvent $event
 		 * @param string $call_event
 		 * @param Array $params
+		 * @param Closure $callback
+		 * @return bool
+		 * @access public
 		 */
-		public function transitEvent($event, $call_event, $params = Array ())
+		public function transitEvent($event, $call_event, $params = Array (), $callback = null)
 		{
 			$params['status'] = 'OK';
 			$event->CallSubEvent($call_event);
 
+			if ( is_callable($callback) ) {
+				call_user_func($callback, $event);
+			}
+
 			if ( $event->status != kEvent::erSUCCESS ) {
 				$this->prepareJSONErrors($event, $params);
 			}
@@ -92,5 +99,7 @@
 			}
 
 			$this->sendResponse($event, $params);
+
+			return $params['status'] == 'OK';
 		}
 	}
\ No newline at end of file