Index: trunk/core/admin_templates/js/ajax.js
===================================================================
diff -u -N -r7391 -r7635
--- trunk/core/admin_templates/js/ajax.js	(.../ajax.js)	(revision 7391)
+++ trunk/core/admin_templates/js/ajax.js	(.../ajax.js)	(revision 7635)
@@ -284,8 +284,8 @@
 }
 
 AjaxPopupManager.prototype.GetSize = function ($template) {
-	if (typeof this.ResponceFunction != 'function') {
-		alert ('Please define responce function first');
+	if (this.ResponceFunction == null) {
+		alert ('Please define responce function first (type: '+typeof(this.ResponceFunction)+')');
 	}
 
 	if (!isset(this.PopupSizes[$template])) {