<!--- navigation preload script --->

var imagesSupported = (document["images"] != null);

function regularImageFile(name)
{
	return ("images/" + name + "-off.gif");
}

function negativeImageFile(name)
{
	return ("images/" + name + "-on.gif");
}

function cacheImages(dex)
{
	regularImageObjects[dex] = new Image(140, 20);
	regularImageObjects[dex].src = regularImageFile(imageNames[dex]);
	negativeImageObjects[dex] = new Image(140, 20);
	negativeImageObjects[dex].src = negativeImageFile(imageNames[dex]);
}

if (imagesSupported)
{
	imageNames = new Array(
							"menu-01", "menu-02", "menu-03", "menu-04",
							"menu-05", "menu-06", "menu-07", "menu-08",
							"menu-09", "menu-10", "menu-11", "menu-12",
							"menu-13", "arrow-back", "arrow-next", "arrow-home", "arrow-start" );
	regularImageObjects = new Array(imageNames.length);
	negativeImageObjects = new Array(imageNames.length);


	for (var i=0; i<imageNames.length; i++)
		cacheImages(i);
}


function highlight(imageName)
{
	if (imagesSupported)
	{
		document.images[imageName].src = negativeImageFile(imageName);
	}

}

function unhighlight(name)
{
	if (imagesSupported)
	{
		document.images[name].src = regularImageFile(name);
	}
}

function launch(URL, newName, newFeatures, orgName) {
  var remote = open(URL, newName, newFeatures);
  if (remote.opener == null)
    remote.opener = window;
  remote.opener.name = orgName;
  return remote;
}

function openWindow(URL) {
   Popup = launch(URL, 'popup', 'dependent=0,height=400,width=500,screenX=35,left=35,screenY=35,top=35,channelmode=0,dependent=0,directories=0,fullscreen=0,location=0,menubar=0,resizable=0,scrollbars=1,status=0,toolbar=0', 'launcher');
}