var homeon = new Image();
homeon.src = "buttons/homeon.gif";
var homeoff = new Image();
homeoff.src = "buttons/home.gif";
var abouton = new Image();
abouton.src = "buttons/abouton.gif";
var aboutoff = new Image();
aboutoff.src = "buttons/about.gif";
var galleryon = new Image();
galleryon.src = "buttons/galleryon.gif";
var galleryoff = new Image();
galleryoff.src = "buttons/gallery.gif";
var contacton = new Image();
contacton.src = "buttons/contacton.gif";
var contactoff = new Image();
contactoff.src = "buttons/contact.gif";
var linkson = new Image();
linkson.src = "buttons/linkson.gif";
var linksoff = new Image();
linksoff.src = "buttons/links.gif";