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) {
		shoppingcart_top_08_over = newImage("images/shoppingcart-top-08-over.gif");
		my_account_top_09_over = newImage("images/my-account-top-09-over.gif");
		login_top_10_over = newImage("images/login-top-10-over.gif");
		help_top_11_over = newImage("images/help-top-11-over.gif");
		checkout_top_12_over = newImage("images/checkout-top-12-over.gif");
		preloadFlag = true;
	}
}