From ae1024dccc57d4ceababcd72d5d5ec726f740ae0 Mon Sep 17 00:00:00 2001
From: piro <piro@599a83e7-65a4-db11-8015-0010dcdd6dc2>
Date: Fri, 17 Oct 2008 17:30:10 +0000
Subject: [PATCH] =?UTF-8?q?=E3=82=A6=E3=82=A3=E3=83=B3=E3=83=89=E3=82=A6?=
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git-svn-id: http://www.cozmixng.org/repos/piro/treestyletab/trunk@3194 599a83e7-65a4-db11-8015-0010dcdd6dc2
---
 content/treestyletab/treestyletabbrowser.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/content/treestyletab/treestyletabbrowser.js b/content/treestyletab/treestyletabbrowser.js
index 510242c9..4505e3ca 100644
--- a/content/treestyletab/treestyletabbrowser.js
+++ b/content/treestyletab/treestyletabbrowser.js
@@ -2294,6 +2294,7 @@ TreeStyleTabBrowser.prototype = {
 	closeOwner : function(aTabOwner) 
 	{
 		var w = aTabOwner.ownerDocument.defaultView;
+		if (!w) return;
 		if ('SplitBrowser' in w &&
 			'getSubBrowserFromChild' in w.SplitBrowser) {
 			var subbrowser = w.SplitBrowser.getSubBrowserFromChild(aTabOwner);