Added in some changes to class handling and some docs for jQuery.nth().

diff --git a/src/jquery/jquery.js b/src/jquery/jquery.js
index 7f7ef08..2ce32e1 100644 (file)
--- a/src/jquery/jquery.js
+++ b/src/jquery/jquery.js
@@ -1235,28 +1235,21 @@ jQuery.extend({
        },
 
        className: {
-               add: function(o,c){
-                       if (jQuery.className.has(o,c)) return;
-                       o.className += ( o.className ? " " : "" ) + c;
+               add: function( elem, c ){
+                       if ( jQuery.className.has( elem, c ) )
+                return;
+                       elem.className += ( elem.className ? " " : "" ) + c;
                },
-               remove: function(o,c){
-                       if( !c ) {
-                               o.className = "";
-                       } else {
-                               var classes = o.className.split(" ");
-                               for(var i=0; i<classes.length; i++) {
-                                       if(classes[i] == c) {
-                                               classes.splice(i, 1);
-                                               break;
-                                       }
-                               }
-                               o.className = classes.join(' ');
-                       }
+               remove: function( elem, c ){
+            elem.className = c ?
+                jQuery.grep( elem.className.split(/\s+/), function(cur){ 
+                                   return jQuery.className.has( c, cur );      
+                }).join(' ') : "";
                },
-               has: function(e,a) {
-                       if ( e.className != undefined )
-                               e = e.className;
-                       return new RegExp("(^|\\s)" + a + "(\\s|$)").test(e);
+               has: function( elem, c ){
+                       if ( elem.className != undefined )
+                               elem = elem.className;
+                       return new RegExp("(^|\\s)" + c + "(\\s|$)").test( elem );
                }
        },
 
@@ -1407,6 +1400,18 @@ jQuery.extend({
                return r;
        },
 
+       /**
+        * A handy, and fast, way to traverse in a particular direction and find
+        * a specific element.
+        *
+        * @private
+        * @name $.nth
+        * @type DOMElement
+        * @param DOMElement cur The element to search from.
+        * @param Number|String num The Nth result to match. Can be a number or a string (like 'even' or 'odd').
+        * @param String dir The direction to move in (pass in something like 'previousSibling' or 'nextSibling').
+        * @cat DOM/Traversing
+        */
        nth: function(cur,result,dir){
                result = result || 1;
                var num = 0;
@@ -1463,7 +1468,7 @@ jQuery.extend({
                        submit: "a.type=='submit'",
                        image: "a.type=='image'",
                        reset: "a.type=='reset'",
-                       button: "a.type=='button'",
+                       button: "a.type=='button'||a.nodeName=='BUTTON'",
                        input: "/input|select|textarea|button/i.test(a.nodeName)"
                },
                ".": "jQuery.className.has(a,m[2])",
@@ -3286,4 +3291,4 @@ jQuery.macros = {
        }
 };
 
-jQuery.init();
+jQuery.init();
\ No newline at end of file