Added an extra documentElement check to isXMLDoc for IE - and added a number of unit...

[jquery.git] / src / core.js

diff --git a/src/core.js b/src/core.js
index 460a1da..097ff42 100644 (file)
--- a/src/core.js
+++ b/src/core.js
@@ -128,7 +128,9 @@ jQuery.fn = jQuery.prototype = {
                return this.length;
        },
 
-       toArray: slice,
+       toArray: function(){
+               return slice.call( this, 0 );
+       },
 
        // Get the Nth element in the matched element set OR
        // Get the whole matched element set as a clean array
@@ -139,7 +141,7 @@ jQuery.fn = jQuery.prototype = {
                        this.toArray() :
 
                        // Return just the object
-                       ( num < 0 ? this.toArray(num)[ 0 ] : this[ num ] );
+                       ( num < 0 ? this.slice(num)[ 0 ] : this[ num ] );
        },
 
        // Take an array of elements and push it onto the stack
@@ -311,8 +313,10 @@ 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";
+               // documentElement is verified for cases where it doesn't yet exist
+               // (such as loading iframes in IE - #4833)
+               var documentElement = (elem.ownerDocument || elem).documentElement;
+               return !!documentElement && documentElement.nodeName !== "HTML";
        },
 
        // Evalulates a script in a global context