X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;ds=sidebyside;f=src%2Ftraversing.js;h=0e379c72b0591092254182cc5ca07a6ec0745b84;hb=19cd84cf3261ee412a2521df73dcf9d6cfba04a3;hp=db446cf81756d149ccb5091c0424dfb6f7b9a1a1;hpb=61b18c866c57f9156f746b691517649f2ce628aa;p=jquery.git

diff --git a/src/traversing.js b/src/traversing.js
index db446cf..0e379c7 100644
--- a/src/traversing.js
+++ b/src/traversing.js
@@ -1,4 +1,4 @@
-jQuery.winnow = function( elements, qualifier, keep ) {
+var winnow = function( elements, qualifier, keep ) {
 	if(jQuery.isFunction( qualifier )) {
 		return jQuery.grep(elements, function(elem, i) {
 			return !!qualifier.call( elem, i ) === keep;
@@ -44,20 +44,20 @@ jQuery.fn.extend({
 	},
 
 	not: function( selector ) {
-		return this.pushStack( jQuery.winnow(this, selector, false), "not", selector);
+		return this.pushStack( winnow(this, selector, false), "not", selector);
 	},
 
 	filter: function( selector ) {
-		return this.pushStack( jQuery.winnow(this, selector, true), "filter", selector );
+		return this.pushStack( winnow(this, selector, true), "filter", selector );
 	},
 
-	closest: function( selector ) {
+	closest: function( selector, context ) {
 		var pos = jQuery.expr.match.POS.test( selector ) ? jQuery(selector) : null,
 			closer = 0;
 
 		return this.map(function(){
 			var cur = this;
-			while ( cur && cur.ownerDocument ) {
+			while ( cur && cur.ownerDocument && cur !== context ) {
 				if ( pos ? pos.index(cur) > -1 : jQuery(cur).is(selector) ) {
 					jQuery.data(cur, "closest", closer);
 					return cur;
@@ -78,7 +78,17 @@ jQuery.fn.extend({
 	},
 
 	eq: function( i ) {
-		return this.slice( i, +i + 1 );
+		return i === -1 ?
+			this.slice( i ) :
+			this.slice( i, +i + 1 );
+	},
+
+	first: function() {
+		return this.eq( 0 );
+	},
+
+	last: function() {
+		return this.eq( -1 );
 	},
 
 	slice: function() {