rem: return g_strconcat ( "/", menu, "/", submenu, NULL );
add: return g_strconcat ( "/MenuBar/", menu, "/", submenu, NULL );
context: gchar * menu_name ( gchar * menu, gchar * submenu, gchar * subsubmenu ){  if ( subsubmenu )    return g_strconcat ( "/", menu, "/", submenu, "/", subsubmenu, NULL );  else if ( submenu )    return g_strconcat ( "/", menu, "/", submenu, NULL );  else    return g_strconcat ( "/", menu, NULL );}