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("http://www.chdcorp.org/images/home-over.gif");
		about_over = newImage("http://www.chdcorp.org/images/about-over.gif");
		sponsors_over = newImage("http://www.chdcorp.org/images/partners-over.gif");
		events_over = newImage("http://www.chdcorp.org/images/events-over.gif");
		programs_over = newImage("http://www.chdcorp.org/images/programs-over.gif");
		era_over = newImage("http://www.chdcorp.org/images/era-over.gif");
		news_over = newImage("http://www.chdcorp.org/images/news-over.gif")
		careers_over = newImage("http://www.chdcorp.org/images/careers-over.gif");;
		videos_over = newImage("http://www.chdcorp.org/images/videos-over.gif");
		links_over = newImage("http://www.chdcorp.org/images/links-over.gif");
		contact_over = newImage("http://www.chdcorp.org/images/contact-over.gif");
		preloadFlag = true;
	}
}