From 66f9e4deb83a45609a6921a086dab09553c67b59 Mon Sep 17 00:00:00 2001
From: piro <piro@599a83e7-65a4-db11-8015-0010dcdd6dc2>
Date: Thu, 1 Oct 2009 00:18:03 +0000
Subject: [PATCH] =?UTF-8?q?=E3=83=AB=E3=83=BC=E3=83=88=E3=81=AE=E3=82=BF?=
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git-svn-id: http://www.cozmixng.org/repos/piro/treestyletab/trunk@5172 599a83e7-65a4-db11-8015-0010dcdd6dc2
---
 content/treestyletab/treestyletabbrowser.js | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/content/treestyletab/treestyletabbrowser.js b/content/treestyletab/treestyletabbrowser.js
index 40a8e5f7..9148cc2b 100644
--- a/content/treestyletab/treestyletabbrowser.js
+++ b/content/treestyletab/treestyletabbrowser.js
@@ -1920,15 +1920,13 @@ TreeStyleTabBrowser.prototype = {
 							this.getNextSiblingTab(aTab) ;
 				if (nextTab == this.getNextSiblingTab(aChild)) return;
 
-				let newPos;
+				let newPos = -1;
 				if (nextTab) {
 					newPos = nextTab._tPos;
 					if (newPos > aChild._tPos) newPos--;
 				}
-				else {
-					newPos = this.getTabs(this.mTabBrowser).snapshotLength - 1;
-				}
-				this.moveTabSubTreeTo(aChild, newPos);
+				if (newPos > -1)
+					this.moveTabSubTreeTo(aChild, newPos);
 			}, this);
 			children = aTab.getAttribute(this.kCHILDREN);
 		}