Index: branches/5.0.x/core/units/categories/categories_event_handler.php
===================================================================
diff -u -r12896 -r12960
--- branches/5.0.x/core/units/categories/categories_event_handler.php	(.../categories_event_handler.php)	(revision 12896)
+++ branches/5.0.x/core/units/categories/categories_event_handler.php	(.../categories_event_handler.php)	(revision 12960)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: categories_event_handler.php 12896 2009-11-10 17:40:29Z alex $
+* @version	$Id: categories_event_handler.php 12960 2009-12-20 13:11:53Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -984,6 +984,7 @@
 		function OnMassDelete(&$event)
 		{
 			if ($this->Application->CheckPermission('SYSTEM_ACCESS.READONLY', 1)) {
+				$event->status = erFAIL;
 				return;
 			}
 
@@ -1104,6 +1105,7 @@
 		function OnPaste(&$event)
 		{
 			if ($this->Application->CheckPermission('SYSTEM_ACCESS.READONLY', 1) || !$this->_checkPastePermission($event)) {
+				$event->status = erFAIL;
 				return ;
 			}
 
@@ -1388,6 +1390,7 @@
 			}
 
 			if ($this->Application->CheckPermission('SYSTEM_ACCESS.READONLY', 1)) {
+				$event->status = erFAIL;
 				return;
 			}
 
@@ -2062,6 +2065,11 @@
 		 */
 		function OnChangePriority(&$event)
 		{
+			if ($this->Application->CheckPermission('SYSTEM_ACCESS.READONLY', 1)) {
+				$event->status = erFAIL;
+				return;
+			}
+
 			$object =& $event->getObject( Array('skip_autoload' => true) );
 			$ids = $this->StoreSelectedIDs($event);
 
@@ -2106,6 +2114,11 @@
 		 */
 		function OnRecalculatePriorities(&$event)
 		{
+			if ($this->Application->CheckPermission('SYSTEM_ACCESS.READONLY', 1)) {
+				$event->status = erFAIL;
+				return;
+			}
+
 			$priority_helper =& $this->Application->recallObject('PriorityHelper');
 			/* @var $priority_helper kPriorityHelper */