function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		Home_over = newImage("images/Home-over.jpg");
		AboutUs_over = newImage("images/AboutUs-over.jpg");
		Services_over = newImage("images/Services-over.jpg");
		Portfolio_over = newImage("images/Portfolio-over.jpg");
		ContactUs_over = newImage("images/ContactUs-over.jpg");
		WebSiteTemplates_over = newImage("images/WebSiteTemplates-over.jpg");
		preloadFlag = true;
	}
}