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/menu/home-over.gif");
			benefits_over = newImage("/images/menu/benefits-over.gif");
			features_over = newImage("/images/menu/features-over.gif");
			packages_over = newImage("/images/menu/packages-over.gif");
			testimonials_over = newImage("/images/menu/testimonials-over.gif");
			contact_over = newImage("/images/menu/contact-over.gif");
			preloadFlag = true;
		}
	}