function showHideMenu(id) {
    if (document.getElementById('LINKsubmenu'+id).style.display=="none") {
      Effect.BlindDown('LINKsubmenu'+id, { duration: 1.0 });
      for (var i=0; i<11; i++) {
        if (document.getElementById('LINKsubmenu'+i)!=null) {
          if (document.getElementById('LINKsubmenu'+i).style.display!="none") {
            Effect.BlindUp('LINKsubmenu'+i, { duration: 1.0 });
            break;
          }
        }
      }
    } else {
      Effect.BlindUp('LINKsubmenu'+id, { duration: 1.0 });
    }
  }