//preload images
imgHome = new Image();
imgHome.src = "/public/images/home.png";
imgHomeOver = new Image();
imgHomeOver.src = "/public/images/home-over.png";
imgGallery = new Image();
imgGallery.src = "/public/images/gallery.png";
imgGalleryOver = new Image();
imgGalleryOver.src = "/public/images/gallery-over.png";
imgForHire = new Image();
imgForHire.src = "/public/images/forhire.png";
imgForHireOver = new Image();
imgForHireOver.src = "/public/images/forhire-over.png";
imgContact = new Image();
imgContact.src = "/public/images/contact.png";
imgContactOver = new Image();
imgContactOver.src = "/public/images/contact-over.png";

function linkOver(img, imgVar) {
	newImg = eval("img" + imgVar + ".src");
    img.src = newImg;
}