From 85cbf6bbbafb91637f0d02182793983a13e043d9 Mon Sep 17 00:00:00 2001
From: Piro / SHIMODA Hiroshi <piro@p.club.ne.jp>
Date: Fri, 18 Mar 2011 21:52:12 +0900
Subject: [PATCH] don't set needless treestyletab-backup-flex

---
 content/treestyletab/treestyletabbrowser.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/content/treestyletab/treestyletabbrowser.js b/content/treestyletab/treestyletabbrowser.js
index 11063751..34586631 100644
--- a/content/treestyletab/treestyletabbrowser.js
+++ b/content/treestyletab/treestyletabbrowser.js
@@ -954,7 +954,8 @@ TreeStyleTabBrowser.prototype = {
 				Array.forEach(strip.childNodes, function(aNode) {
 					if (aNode.localName == 'tabs')
 						return;
-					aNode.setAttribute('treestyletab-backup-flex', aNode.getAttribute('flex'));
+					if (aNode.hasAttribute('flex'))
+						aNode.setAttribute('treestyletab-backup-flex', aNode.getAttribute('flex'));
 					aNode.removeAttribute('flex');
 				}, this);
 			}