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) {
		about_over = newImage("images/about-over.gif");
		order_over = newImage("images/order-over.gif");
		gift_over = newImage("images/gift-over.gif");
		fresh_over = newImage("images/fresh-over.gif");
		charter_over = newImage("images/charter-over.gif");
		contact_over = newImage("images/contact-over.gif");
		preloadFlag = true;
	}
}