function expand(el)
{
	whichEl = document.getElementById(el);

    if (whichEl.style.display == "none")
    {
		whichEl.style.display = "block";
    }
    else
    {
		whichEl.style.display = "none";
    }
}
function setbg(obj,colr)
{
	elm = document.getElementById(obj);
	elm.style.background=colr;
}
function PreloadImages()
{
 if (document.images)
 {
  var imgFiles = PreloadImages.arguments;
  var preloadArray = new Array();
  for (var i=0; i<imgFiles.length; i++)
  {
   preloadArray[i] = new Image;
   preloadArray[i].src = imgFiles[i];
  }
  }
}