Index: branches/5.2.x/core/units/helpers/search_helper.php
===================================================================
diff -u -N -r15113 -r15130
--- branches/5.2.x/core/units/helpers/search_helper.php	(.../search_helper.php)	(revision 15113)
+++ branches/5.2.x/core/units/helpers/search_helper.php	(.../search_helper.php)	(revision 15130)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: search_helper.php 15113 2012-02-16 11:13:15Z alex $
+* @version	$Id: search_helper.php 15130 2012-03-03 18:38:32Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -214,7 +214,7 @@
 		 * @return void
 		 * @access public
 		 */
-		public function performSearch(&$event)
+		public function performSearch($event)
 		{
 			$object =& $event->getObject();
 			/* @var $object kDBItem */
@@ -243,7 +243,7 @@
 		 * @param Array $custom_filter
 		 * @return void
 		 */
-		function processAutomaticFilters(&$event, $search_keyword, $custom_filter)
+		function processAutomaticFilters($event, $search_keyword, $custom_filter)
 		{
 			$grid_name = $this->Application->GetVar('grid_name');
 			$grids = $this->Application->getUnitOption($event->Prefix, 'Grids');
@@ -408,7 +408,7 @@
 		 * @param kEvent $event
 		 * @return Array|bool
 		 */
-		function processCustomFilters(&$event)
+		function processCustomFilters($event)
 		{
 			$grid_name = $this->Application->GetVar('grid_name');
 
@@ -729,7 +729,7 @@
 		 *
 		 * @param kEvent $event
 		 */
-		function resetSearch(&$event)
+		function resetSearch($event)
 		{
 			$this->Application->RemoveVar($event->getPrefixSpecial().'_search_filter');
 			$this->Application->RemoveVar($event->getPrefixSpecial().'_search_keyword');
@@ -746,7 +746,7 @@
 		 * @param string $types
 		 * @param string $except_types
 		 */
-		function SetComplexFilter(&$event, &$type_clauses, $types, $except_types)
+		function SetComplexFilter($event, &$type_clauses, $types, $except_types)
 		{
 			$includes_or_filter =& $this->Application->makeClass('kMultipleFilter', Array (kDBList::FLT_TYPE_OR));
 			/* @var $includes_or_filter kMultipleFilter */