img1on = new Image;
img1on.src = "http://www.paydayloanaffiliate.com/Affiliate/images/nav-home-on.gif";
img1off = new Image;
img1off.src = "http://www.paydayloanaffiliate.com/Affiliate/images/nav-home.gif";

img2on = new Image;
img2on.src = "http://www.paydayloanaffiliate.com/Affiliate/images/nav-how-on.gif";
img2off = new Image;
img2off.src = "http://www.paydayloanaffiliate.com/Affiliate/images/nav-how.gif";

img3on = new Image;
img3on.src = "http://www.paydayloanaffiliate.com/Affiliate/images/nav-faq-on.gif";
img3off = new Image;
img3off.src = "http://www.paydayloanaffiliate.com/Affiliate/images/nav-faq.gif";

img4on = new Image;
img4on.src = "http://www.paydayloanaffiliate.com/Affiliate/images/nav-contact-on.gif";
img4off = new Image;
img4off.src = "http://www.paydayloanaffiliate.com/Affiliate/images/nav-contact.gif";

function over(imgName) {
	document[imgName].src = eval(imgName + "on.src");
}
function out(imgName) {
	document[imgName].src = eval(imgName + "off.src");
}