function loadRollovers() {
	var img = new Image();
	img.src = "files/home-shop-on.png";
	img = new Image();
	img.src = "files/home-site-on.png";
}

function rollOn(objName) {
	var imgObj = document.getElementById(objName);
	
	switch (objName) {
		case "shopButton":
			imgObj.src = "files/home-shop-on.png";
			break;
		case "siteButton":
			imgObj.src = "files/home-site-on.png";
			break;
	}
}

function rollOff(objName) {
	var imgObj = document.getElementById(objName);
	
	switch (objName) {
		case "shopButton":
			imgObj.src = "files/home-shop-off.png";
			break;
		case "siteButton":
			imgObj.src = "files/home-site-off.png";
			break;
	}
}