hi! I'm working on a DD website based on the "sortable list" example. the problem is, that my draggable divs are no "yui modules" by default, i.e. i cant hide them easily what is the best way to inherit the module behaviour? I cannot simply say YAHOO.extend(YAHOO.xop.DDPortlet, YAHOO.widget.Module, {...} because my "DDPortlet" is already an extension of DDProxy: YAHOO.xop.DDPortlet = function(id, sGroup, config) { YAHOO.xop.DDPortlet.superclass.constructor.call(this, id, sGroup, config); Dom.setStyle(this.getDragEl(), "opacity", 0.4); this.goingUp = false; this.lastY = 0; }; YAHOO.extend(YAHOO.xop.DDPortlet, YAHOO.util.DDProxy, {...} what is the best approach here?