code: function() {
  			YAHOO.util.Event.addListener(this.el,"change", this.onAddNewItem, this, true);
  			this.ddlist.itemRemovedEvt.subscribe(this.onItemRemoved, this, true);
  			this.ddlist.listReorderedEvt.subscribe(this.fireUpdatedEvt, this, true);
  		}
docs: Register the "change" event