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) {
		menu_home_over = newImage("images/menu-home-over.jpg");
		menu_about_over = newImage("images/menu-about-over.jpg");
		menu_schedule_over = newImage("images/menu-schedule-over.jpg");
		menu_media_over = newImage("images/menu-media-over.jpg");
		menu_discography_over = newImage("images/menu-discography-over.jpg");
		menu_booking_over = newImage("images/menu-booking-over.jpg");
		menu_links_over = newImage("images/menu-links-over.jpg");
		design_guestbook_over = newImage("images/menu-guestbook-over.jpg");
		preloadFlag = true;
	}
}