// preload and swap images

if(document.images)  {

	var oneOn = new Image(); 
	oneOn.src = "../media/body/four/1_4.gif";
	var twoOn = new Image(); 
	twoOn.src = "../media/body/four/2_4.gif";
	var threeOn = new Image(); 
	threeOn.src = "../media/body/four/3_4.gif";
	var fourOn = new Image(); 
	fourOn.src = "../media/body/four/4_4.gif";

}