<!-- ImageReady Preload Script (v2_naviOnly.psd) -->
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_over = newImage("images/navi/home-over.gif");
		about_home_over = newImage("images/navi/about-home_over.gif");
		news_home_over = newImage("images/navi/news-home_over.gif");
		calendar_home_over = newImage("images/navi/calendar-home_over.gif");
		photos_home_over = newImage("images/navi/photos-home_over.gif");
		downloads_home_over = newImage("images/navi/downloads-home_over.gif");
		guestbook_home_over = newImage("images/navi/guestbook-home_over.gif");
		messageboard_home_over = newImage("images/navi/messageboard-home_over.gif");
		contact_home_over = newImage("images/navi/contact-home_over.gif");
		preloadFlag = true;
	}
}
<!-- End Preload Script -->