Index: trunk/core/kernel/application.php
===================================================================
diff -u -r4626 -r4627
--- trunk/core/kernel/application.php	(.../application.php)	(revision 4626)
+++ trunk/core/kernel/application.php	(.../application.php)	(revision 4627)
@@ -1783,13 +1783,13 @@
 	 * @param int $type permission type {1 - system, 0 - per category}
 	 * @return int
 	 */
-	function CheckPermission($name, $type, $cat_id = null)
+	function CheckPermission($name, $type = 1, $cat_id = null)
 	{
-		if ($this->GetVar('u_id') == -1 && ($name == 'ADMIN' || $name == 'LOGIN')) {
-			// "root" is permitted to login in any case
-            return 1;
+		if ($this->GetVar('u_id') == -1) {
+			// "root" is allowed anywhere
+            return $name == 'SYSTEM_ACCESS.READONLY' ? 0 : 1;
         }
-		
+        
         if ($type == 1) {
         	// "system" permission are always checked per "Home" category (ID = 0)
         	$cat_id = 0;