There are four pairs of functions that you may use.
actuatorMouseover(event, menuId, dir, adjX, adjY);
and actuatorMouseout(event, menuId);
For highliting menu headers. Will also show and hide menus when GlideParams.CLICK_START is false.
showMenu(event, id, dir, adjX, adjY);
and hideMenu(id);
For showing and hiding menus.
headerMouseover(imgName_or_element);
and
headerMouseover(imgName_or_element);
For highliting menu headers that do not have an associated menu.
showSubMenu(e, parentMenuId, id, dir, adjX, adjY);
and
hideSubMenu(id);
For showing and hiding sub menus.