<!--

// -------------------------------------------------- //
// Load images into the browser's cache. 
// -------------------------------------------------- //
function preloadImages() 
{
  if (!document.images) return;
  var img = new Array();
  var arg = preloadImages.arguments;
  for (var i = 0; i < arguments.length; i++) 
  {
    img[i] = new Image();
    img[i].src = arguments[i];
  }
}

// -------------------------------------------------- //
// Description:	Show or hide a layer.
// Parameters:
//		lyr   	The layer's ID.
//		action	Either "visible" or "hidden".		
// -------------------------------------------------- //
function showHideLayer(lyr,action)
{
  var obj = document.getElementById(lyr);
  obj.style.visibility = action;
}

// -------------------------------------------------- //
// Description:	Image rollover function.
// Parameters:
//		name   	The name of the image.
//		src	The image path to change to.
// -------------------------------------------------- //
function changeImage(name,src)
{
  if (document.images)
  {
      document[name].src = src;
  }
}

//-->