homeOn = new Image(); homeOn.src="img/nav-home-over.gif";
homeOff = new Image(); homeOff.src="img/nav-home.gif";

servicesOn = new Image(); servicesOn.src="img/nav-services-over.gif";
servicesOff = new Image(); servicesOff.src="img/nav-services.gif";

trainersOn = new Image(); trainersOn.src="img/nav-trainers-over.gif";
trainersOff = new Image(); trainersOff.src="img/nav-trainers.gif";

galleryOn = new Image(); galleryOn.src="img/nav-gallery-over.gif";
galleryOff = new Image(); galleryOff.src="img/nav-gallery.gif";

favsOn = new Image(); favsOn.src="img/nav-favs-over.gif";
favsOff = new Image(); favsOff.src="img/nav-favs.gif";

aboutOn = new Image(); aboutOn.src="img/nav-about-over.gif";
aboutOff = new Image(); aboutOff.src="img/nav-about.gif";

contactOn = new Image(); contactOn.src="img/nav-contact-over.gif";
contactOff = new Image(); contactOff.src="img/nav-contact.gif";


function navOver(object) {
 document.getElementById(object).src=eval(object+'On.src');
}

function navOut(object) {
 document.getElementById(object).src=eval(object+'Off.src');
}