var NS4 = (document.layers) ? 1 : 0;
var IE4 = (document.all) ? 1 : 0;
var V6 = (document.getElementById) ? 1 : 0;
var ie5  = (document.all && document.getElementById);
var ns6 = (!document.all && document.getElementById);
var campus="bush";
  function PP_preloadImages()
  {
    if( document.images )
    {
      var preLoadArg = PP_preloadImages.arguments;

      var arrayImages = new Array();

      for( var i = 0; i < preLoadArg.length; i++ )
      {
        arrayImages[i] = new Image();
        arrayImages[i].src = preLoadArg[i];
      }
    }
  }

  function locateObject(name, d)
  {
    var i,x;
    if( !d ) d = document;
  	 x = d[name];
    for(i=0; !x && d.layers && i< d.layers.length; i++)
      x=locateObject(name, d.layers[i].document);
    return x;
  }

  function ImageSwap( Name, URL, CName)  {
    var img;
    img = locateObject(Name);
    img.src = URL;
  }
  
function hideAll()
{
var args=hideAll.arguments;
for (n = 0; n < args.length; n++)
   {
   if(IE4){
   thisArg=eval(args[n]);
   thisArg.style.visibility="hidden";
      }
   else if(V6){
   document.getElementById(args[n]).style.visibility="hidden";
      }
	else if(NS4) {
	document.layers[args[n]].visibility="hidden";
	  }  
   }  
}

function showAll()
{
var args=showAll.arguments;
for (n = 0; n < args.length; n++)
   {
   if(IE4){
   thisArg=eval(args[n]);
   thisArg.style.visibility="visible";
      }
   else if(V6){
   document.getElementById(args[n]).style.visibility="visible";
      }
	else if(NS4) {
	document.layers[args[n]].visibility="visible";
	  }  
   }  
}