From 6aac2b3e6749a885692d1882901157f3a2355b9e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=BCrg=20Lehni?= <juerg@scratchdisk.com>
Date: Sat, 28 May 2011 21:06:30 +0100
Subject: [PATCH] Fix Item#isChild(item).

---
 src/item/Item.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/item/Item.js b/src/item/Item.js
index 2cb5d4e3..fd2f7bc9 100644
--- a/src/item/Item.js
+++ b/src/item/Item.js
@@ -643,7 +643,7 @@ var Item = this.Item = Base.extend({
 	 * @return {boolean} {@true it is a child of the item}
 	 */
 	isChild: function(item) {
-		return item._parent == this;
+		return item && item._parent == this;
 	},
 
 	/**