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) {
		top_view_cart_over = newImage("/skin1/images/template/top_view_cart-over.jpg");
		top_checkout_over = newImage("/skin1/images/template/top_checkout-over.jpg");
		top_rugdoctor_over = newImage("/skin1/images/template/top_rugdoctor-over.jpg");
		header_free_trial_over = newImage("/skin1/images/template/header_free_trial-over.jpg");
		preloadFlag = true;
	}
}