Multiples menus and sub menus

1

how can i add more menus and sub menus from this example?


sub_menu._y = (30-sub_menu._height);
Over = function () {
    onEnterFrame = function () {
        if (((this._xmouse>0 && this._xmouse<150) && this._ymouse>0) && this._ymouse<30) {
            delete this.onEnterFrame;
            Out();
            sub_menu.tween("_y", 30, 1, "easeOutExpo");
        }
    };
};
Out = function () {
    onEnterFrame = function () {
        if (((this._xmouse>0 && this._xmouse<150) && this._ymouse>0) && this._ymouse<sub_menu._height+30) {
        } else {
            delete this.onEnterFrame;
            Over();
            sub_menu.tween("_y", (30-sub_menu._height), 1, "easeOutExpo");
        }
    };
};
Over();

here is the .fla :tb: