Method Gnome.AppletWidget()->unregister_callback_dir()

Method unregister_callback_dir: Gnome.AppletWidget unregister_callback_dir(string name)
Description: Removes a submenu from the applet's context menu. Use this instead of unregister_callback to remove submenus. The name can be, but doesn't have to be terminated with a '/'. If you have not removed the subitems of this menu, it will still be shown but without it's title or icon. So make sure to first remove any items and submenus before calling this function.