From: John Resig <jeresig@gmail.com>
Date: Wed, 22 Jul 2009 17:30:17 +0000 (+0000)
Subject: Optimizing isXMLDoc.
X-Git-Url: http://git.asbjorn.it/?a=commitdiff_plain;h=b964e56946c9111d7e53fa1eafb14cab3cd642f2;p=jquery.git

Optimizing isXMLDoc.
---

diff --git a/src/core.js b/src/core.js
index 460a1da..b105c4c 100644
--- a/src/core.js
+++ b/src/core.js
@@ -311,8 +311,7 @@ jQuery.extend({
 
 	// check if an element is in a (or is an) XML document
 	isXMLDoc: function( elem ) {
-		return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
-			!!elem.ownerDocument && elem.ownerDocument.documentElement.nodeName !== "HTML";
+		return (elem.ownerDocument || elem).documentElement.nodeName !== "HTML";
 	},
 
 	// Evalulates a script in a global context