* @param pos the {@link El#alignTo} anchor position to use in aligning to the
* element (defaults to defaultAlign)
* @param offsets the menu align offsets
*/
public void show(Element elem, String pos, int[] offsets) {
MenuEvent me = new MenuEvent(this);
if (fireEvent(Events.BeforeShow, me)) {
RootPanel.get().add(this);
el().makePositionable(true);