From 65c52e7872d67641e4d9bd885e3cea05e19692ba Mon Sep 17 00:00:00 2001
From: piro <piro@599a83e7-65a4-db11-8015-0010dcdd6dc2>
Date: Thu, 23 Jul 2009 16:59:35 +0000
Subject: [PATCH] =?UTF-8?q?=E8=A6=AA=E3=82=BF=E3=83=96=E3=81=8C=E6=97=A2?=
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git-svn-id: http://www.cozmixng.org/repos/piro/treestyletab/trunk@4795 599a83e7-65a4-db11-8015-0010dcdd6dc2
---
 content/treestyletab/treestyletabbrowser.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/content/treestyletab/treestyletabbrowser.js b/content/treestyletab/treestyletabbrowser.js
index c10385aa..c866b0ab 100644
--- a/content/treestyletab/treestyletabbrowser.js
+++ b/content/treestyletab/treestyletabbrowser.js
@@ -2969,9 +2969,11 @@ TreeStyleTabBrowser.prototype = {
 		aChild.dispatchEvent(event);
 
 		if (this.isGroupTab(parentTab) && !this.hasChildTabs(parentTab)) {
-			window.setTimeout(function(aSelf) {
-				aSelf.getTabBrowserFromChild(parentTab).removeTab(parentTab);
-			}, 0, this);
+			window.setTimeout(function(aTabBrowser) {
+				if (parentTab.parentNode)
+					aTabBrowser.removeTab(parentTab);
+				parentTab = null;
+			}, 0, this.getTabBrowserFromChild(parentTab));
 		}
 	},
 	detachTab : function(aChild, aDontUpdateIndent) // alias