From d00f9b55efc477bca7cecb05a93112f5afd47519 Mon Sep 17 00:00:00 2001
From: Alan Knowles <alan@akbkhome.com>
Date: Wed, 26 May 2010 17:38:29 +0800
Subject: [PATCH] builder.html.js

---
 builder.html.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/builder.html.js b/builder.html.js
index 837e80f05..183711e12 100644
--- a/builder.html.js
+++ b/builder.html.js
@@ -221,7 +221,7 @@ Builder  = {
              
         }
         if (cfg.xtype) {
-            if (typeof(cfg.xns[cfg.xtype]) == 'undefined') {
+            if (!cfg.xns || typeof(cfg.xns[cfg.xtype]) == 'undefined') {
                 throw "Invalid Xtype " + this.xtreepath;
             }
         }
-- 
2.39.2