<!-- Pulldown Menu -->
var openedMenu = null;
var submenuTimer;

function menuOvr(id){
  if (openedMenu && openedMenu != id){
    CloseMenu(id);
  }
  OpenMenu(id);
}

function OpenMenu(id){ 
  if ( document.getElementById ){
    document.getElementById( id ).style.visibility = 'visible';
  }else if ( document.all ){
    document.all( id ).style.visibility = 'visible';
  }else if ( document.layers ){
    document.layers[ id ].visibility = 'show';
  }
  clearTimeout(submenuTimer);
  openedMenu = id;
}

function CloseMenu(){ 
  if ( document.getElementById ){
    document.getElementById( openedMenu ).style.visibility = 'hidden';
  }else if ( document.all ){
    document.all( openedMenu ).style.visibility = 'hidden';
  }else if ( document.layers ){
    document.layers[ openedMenu ].visibility = 'hide';
  }
  openedMenu = null;
}