if(document.images)
{
	nav1A = new Image();
	nav1A.src = "images/buttons/nav1A.gif";

	nav2A = new Image();
	nav2A.src = "images/buttons/nav2A.gif";

	nav3A = new Image();
	nav3A.src = "images/buttons/nav3A.gif";

	nav4A = new Image();
	nav4A.src = "images/buttons/nav4A.gif";

	nav5A = new Image();
	nav5A.src = "images/buttons/nav5A.gif";

	nav6A = new Image();
	nav6A.src = "images/buttons/nav6A.gif";
	
	nav7A = new Image();
	nav7A.src = "images/buttons/nav7A.gif";

	nav8A = new Image();
	nav8A.src = "images/buttons/nav8A.gif";
	
	nav1b = new Image();
	nav1b.src ="images/buttons/nav1b.gif";

	nav2b = new Image();
	nav2b.src = "images/buttons/nav2b.gif";

	nav3b = new Image();
	nav3b.src = "images/buttons/nav3b.gif";

	nav4b = new Image();
	nav4b.src = "images/buttons/nav4b.gif";

	nav5b = new Image();
	nav5b.src = "images/buttons/nav5b.gif";

	nav6b = new Image();
	nav6b.src = "images/buttons/nav6b.gif";
	
	nav7b = new Image();
	nav7b.src = "images/buttons/nav7b.gif";
	
	nav8b = new Image();
	nav8b.src = "images/buttons/nav8b.gif";
}

function switchit(img,imgname)
{
	if(document.images)
		document[imgname].src = eval("nav"+ img +".src");
}