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) {
		programschedule_over = newImage("/graphics/nav/programschedule-over.gif");
		makepledge_over = newImage("/graphics/nav/makepledge-over.gif");
		memberbenefits_over = newImage("/graphics/nav/memberbenefits-over.gif");
		faq_over = newImage("/graphics/nav/faq-over.gif");
		contactus_over = newImage("/graphics/nav/contactus-over.gif");
		preloadFlag = true;
	}
}