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];
		}
	}
}
function changeCartImg(s){
	if(document.images && (preloadFlag == true)){
		document.getElementById("submitImg").src = s;
	}
}
var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		jd_08_over = newImage("images/nav/home-on.jpg");
		jd_09_over = newImage("images/nav/products-on.jpg");
		jd_10_over = newImage("images/nav/about-on.jpg");
		jd_11_over = newImage("images/nav/aboutus-on.jpg");
		jd_12_over = newImage("images/nav/contact-on.jpg");
		jd_13_over = newImage("images/nav/cart-on.jpg");
		preloadFlag = true;
	}
}