function preloadImages() 
{ 
	image1 = new Image();
	image1.src = "/splash/_images/menu1-on.gif";
	image2 = new Image();
	image2.src = "/splash/_images/menu2-on.gif";
	image3 = new Image();
	image3.src = "/splash/_images/menu3-on.gif";
	image4 = new Image();
	image4.src = "/splash/_images/menu4-on.gif";
}