//about nav
if (document.images != null) {

ontop = new Array (14); offtop = new Array (14);
for (i=1;i<14;i++) {ontop[i] = new Image; offtop[i] = new Image;}

// mouseover
ontop[1].src="/images/nav/about_.gif";
ontop[2].src="/images/nav/product_.gif";
ontop[3].src="/images/nav/tour_.gif";
ontop[4].src="/images/nav/resources_.gif";
ontop[5].src="/images/nav/news_.gif";
ontop[6].src="/images/nav/calendar_.gif";
ontop[7].src="/images/nav/contact_.gif";

ontop[11].src="/images/nav/foot_signup_.gif";
ontop[12].src="/images/nav/foot_sitemap_.gif";
ontop[13].src="/images/nav/foot_privacy_.gif";

// mouseout
offtop[1].src="/images/nav/about.gif";
offtop[2].src="/images/nav/product.gif";
offtop[3].src="/images/nav/tour.gif";
offtop[4].src="/images/nav/resources.gif";
offtop[5].src="/images/nav/news.gif";
offtop[6].src="/images/nav/calendar.gif";
offtop[7].src="/images/nav/contact.gif";

offtop[11].src="/images/nav/foot_signup.gif";
offtop[12].src="/images/nav/foot_sitemap.gif";
offtop[13].src="/images/nav/foot_privacy.gif";
}

function top_on(n) {if (document.images != null) {document.images["i"+(n+"")].src=ontop[n].src;}}
function top_off(n) {if (document.images != null) {document.images["i"+(n+"")].src=offtop[n].src;}}