From 16b85bda32d687091c9bc95b3f9e124ae597f188 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Lang <jp_lang@yahoo.fr>
Date: Wed, 24 Dec 2008 13:32:59 +0000
Subject: [PATCH] Merged r2178 from trunk.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/0.8-stable@2179 e93f8b46-1217-0410-a6f0-8f06a7374b81
---
 public/javascripts/context_menu.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/public/javascripts/context_menu.js b/public/javascripts/context_menu.js
index 20f0fc5a7..955650d6a 100644
--- a/public/javascripts/context_menu.js
+++ b/public/javascripts/context_menu.js
@@ -48,7 +48,7 @@ ContextMenu.prototype = {
     if (window.opera && e.altKey) {	return; }
     if (Event.isLeftClick(e) || (navigator.appVersion.match(/\bMSIE\b/))) {      
       var tr = Event.findElement(e, 'tr');
-      if (tr!=document && tr.hasClassName('hascontextmenu')) {
+      if (tr!=null && tr!=document && tr.hasClassName('hascontextmenu')) {
         // a row was clicked, check if the click was on checkbox
         var box = Event.findElement(e, 'input');
         if (box!=document && box!=undefined) {