<!--

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) {
		navtop_home_over = newImage("http://www.nasstrac.org/images/navtop/navtop_home-over.gif");
		navtop_about_over = newImage("http://www.nasstrac.org/images/navtop/navtop_about-over.gif");
		navtop_events_over = newImage("http://www.nasstrac.org/images/navtop/navtop_events-over.gif");
		navtop_membersonly_over = newImage("http://www.nasstrac.org/images/navtop/navtop_membersonly-over.gif");
		navtop_joinnow_over = newImage("http://www.nasstrac.org/images/navtop/navtop_joinnow-over.gif");
		navtop_newsroom_over = newImage("http://www.nasstrac.org/images/navtop/navtop_newsroom-over.gif");
		navtop_contactus_over = newImage("http://www.nasstrac.org/images/navtop/navtop_contactus-over.gif");
		navtop_sitemap_over = newImage("http://www.nasstrac.org/images/navtop/navtop_sitemap-over.gif");
		preloadFlag = true;
	}
}

// -->