From 063058741bc37974e06b7d7db6fc74ce620bf649 Mon Sep 17 00:00:00 2001
From: Herman van Rink <rink@initfour.nl>
Date: Wed, 3 Feb 2010 14:26:37 +0000
Subject: [PATCH] Prevent js error in some cases after session expiration

---
 js/common.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/js/common.js b/js/common.js
index e1de64a54..1d52c9770 100644
--- a/js/common.js
+++ b/js/common.js
@@ -437,7 +437,7 @@ function openDb(new_db) {
 
 function updateTableTitle( table_link_id, new_title ) {
     //alert('updateTableTitle');
-    if ( window.parent.frame_navigation.document.getElementById(table_link_id) ) {
+    if ( window.parent.frame_navigation.document && window.parent.frame_navigation.document.getElementById(table_link_id) ) {
         var left = window.parent.frame_navigation.document;
 
         var link = left.getElementById(table_link_id);