From 6a50758086f2db26b12b12e8c58a42cbbd28a98a Mon Sep 17 00:00:00 2001
From: John Resig <jeresig@gmail.com>
Date: Wed, 9 Aug 2006 05:44:25 +0000
Subject: [PATCH] Fixed some bugs with attribute handling.

---
 jquery/jquery.js | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/jquery/jquery.js b/jquery/jquery.js
index 50bbde33..ebf10386 100644
--- a/jquery/jquery.js
+++ b/jquery/jquery.js
@@ -241,7 +241,7 @@ jQuery.fn = jQuery.prototype = {
 	 */
 	attr: function( key, value, type ) {
 		// Check to see if we're setting style values
-		return key.constructor != String || value ?
+		return key.constructor != String || value != undefined ?
 			this.each(function(){
 				// See if we're setting a hash of styles
 				if ( value == undefined )
@@ -759,6 +759,12 @@ jQuery.extend({
 				return this.each( n, arguments );
 			};
 		});
+
+		jQuery.each( jQuery.macros.filter, function(i,n){
+			jQuery.fn[ n ] = function(num,fn) {
+				return this.filter( ":" + n + "(" + num + ")", fn );
+			};
+		});
 		
 		jQuery.each( jQuery.macros.attr, function(i,n){
 			n = n || i;
@@ -1739,6 +1745,8 @@ jQuery.macros = {
 	
 	css: "width,height,top,left,position,float,overflow,color,background".split(","),
 
+	filter: [ "eq", "lt", "gt", "contains" ],
+
 	attr: {
 		/**
 		 * Get the current value of the first matched element.