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.gif");
			specials_over = newImage("images/specials-over.gif");
			parts_over = newImage("images/parts-over.gif");
			contact_over = newImage("images/contact-over.gif");
			preloadFlag = true;
		}
	}