if(document.all)
{
   visible='visible';
   hidden='hidden';
}//ie
else if(document.getElementById)
{
   visible='visible';
   hidden='hidden';
}//ns6
else if(document.layers)
{
   visible='show';
   hidden='hide';
}//ns4

var lastMenu = 'morePeople';

function reveal(menu,bar)
{
   if(document.all)
   {
      theMenu = document.all(menu).style;
      lastMenu.visibility = hidden;
      theMenu.visibility = visible;
      lastMenu = theMenu;
    
   }

   else if(document.getElementById)
   {
      document.getElementById(lastMenu).style.visibility = hidden;
      document.getElementById(menu).style.visibility = visible;
      lastMenu = menu;
   }

   else if(document.layers)
   {
      theMenu = document.layers[menu];
      lastMenu.visibility = hidden;
      theMenu.visibility = visible;
      lastMenu = theMenu;
   }
}