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_on_over = newImage("../menu/images/buttons/home_on-over.gif");
		events_on_over = newImage("../menu/images/buttons/events_on-over.gif");
		links_on_over = newImage("../menu/images/buttons/links_on-over.gif");
		shop_on_over = newImage("../menu/images/buttons/shop_on-over.gif");
		contact_on_over = newImage("../menu/images/buttons/contact_on-over.gif");
		preloadFlag = true;
	}
}