clone: function(contents, keepid) {
	    var ie = Browser.Engine.trident;
	    var clone = this.cloneNode(!!contents);
	    var clean = function(node, element) {
	        if (!keepid) node.removeAttribute('id');
	        node.selected = element.selected;
	        if (!ie) return;
	        node.clearAttributes();
	        node.mergeAttributes(element);
	        node.removeAttribute('uid');
	        node.checked = element.checked;
	    };

	    if (contents) {
	        var ce = clone.getElementsByTagName('*'), te = this.getElementsByTagName('*');
	        for (var i = ce.length; i--; ) clean(ce[i], te[i]);
	    }
	    clean(clone, this);
	    return $(clone);
	},