dropDown menu?

[amexdesign]

всё намного проще

var menu = ["one", "two", "three", "four"];
mainMenu.onRelease = function () {
   for (var i = 0; i<menu.length; i++) {
      var b = attachMovie("subMenu", "subMenu"+i, i);
      b._y = b._height*i;
      b.txt = menu[i];
   }
};