X-Git-Url: http://git.asbjorn.it/?a=blobdiff_plain;f=src%2Fcore.js;h=5ccf15875ce9f20ee16c80b5d17da37a42636bde;hb=b7d4e0e46cb2cad6f400173cd09ce44d1b8ad04e;hp=b105c4c5b9d920a8d35c5cf3e1c8a3e3a313c157;hpb=b964e56946c9111d7e53fa1eafb14cab3cd642f2;p=jquery.git

diff --git a/src/core.js b/src/core.js
index b105c4c..5ccf158 100644
--- a/src/core.js
+++ b/src/core.js
@@ -20,7 +20,7 @@ var jQuery = function( selector, context ) {
 
 	// A simple way to check for HTML strings or ID strings
 	// (both of which we optimize for)
-	quickExpr = /^[^<]*(<(.|\s)+>)[^>]*$|^#([\w-]+)$/,
+	quickExpr = /^[^<]*(<[\w\W]+>)[^>]*$|^#([\w-]+)$/,
 
 	// Is it a simple selector
 	isSimple = /^.[^:#\[\.,]*$/,
@@ -39,15 +39,19 @@ var jQuery = function( selector, context ) {
 	push = Array.prototype.push,
 	slice = Array.prototype.slice;
 
-// Expose jQuery to the global object
-window.jQuery = window.$ = jQuery;
-
 jQuery.fn = jQuery.prototype = {
 	init: function( selector, context ) {
 		var match, elem, ret;
 
 		// Handle $(""), $(null), or $(undefined)
-		if ( !selector ) return this;
+		if ( !selector ) {
+			return this;
+		}
+
+		// $("body"): Shortcut for quickly finding the body element
+		if ( selector === "body" && !context && document.body ) {
+			selector = document.body;
+		}
 
 		// Handle $(DOMElement)
 		if ( selector.nodeType ) {
@@ -70,12 +74,14 @@ jQuery.fn = jQuery.prototype = {
 
 				// HANDLE: $("#id")
 				} else {
-					elem = document.getElementById( match[3] );
+					elem = document.getElementById( match[2] );
 
 					if ( elem ) {
 						// Handle the case where IE and Opera return items
 						// by name instead of ID
-						if ( elem.id !== match[3] ) return rootjQuery.find( selector );
+						if ( elem.id !== match[2] ) {
+							return rootjQuery.find( selector );
+						}
 
 						// Otherwise, we inject the element directly into the jQuery object
 						this.length++;
@@ -128,7 +134,9 @@ 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 +147,7 @@ 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
@@ -311,7 +319,10 @@ jQuery.extend({
 
 	// check if an element is in a (or is an) XML document
 	isXMLDoc: function( elem ) {
-		return (elem.ownerDocument || elem).documentElement.nodeName !== "HTML";
+		// documentElement is verified for cases where it doesn't yet exist
+		// (such as loading iframes in IE - #4833)
+		var documentElement = (elem ? elem.ownerDocument || elem : 0).documentElement;
+		return documentElement ? documentElement.nodeName !== "HTML" : false;
 	},
 
 	// Evalulates a script in a global context