if (document.images)
{
   home               = new Image();
   home.src           = "images/home.jpg";
   homedown           = new Image();
   homedown.src       = "images/home_over.jpg";

   about                 = new Image();
   about.src             = "images/about.jpg";
   aboutdown             = new Image();
   aboutdown.src         = "images/about_over.jpg";

   renaissance              = new Image();
   renaissance.src          = "images/renaissance.jpg";
   renaissancedown          = new Image();
   renaissancedown.src      = "images/renaissance_over.jpg";

   news                  = new Image();
   news.src              = "images/news.jpg";
   newsdown              = new Image();
   newsdown.src          = "images/news_over.jpg";
   
   linkss                  = new Image();
   linkss.src              = "images/links.jpg";
   linkssdown              = new Image();
   linkssdown.src          = "images/links_over.jpg";
   
   gallery                  = new Image();
   gallery.src              = "images/gallery.jpg";
   gallerydown              = new Image();
   gallerydown.src          = "images/gallery_over.jpg";
   
   contact              = new Image();
   contact.src           = "images/contact.jpg";
   contactdown           = new Image();
   contactdown.src       = "images/contact_over.jpg";

}

function buttondown(bname)
{
    if (document.images)
        document[bname].src = eval(bname + "down.src");
}

function buttonup(bname)
{
    if (document.images)
        document[bname].src = eval(bname + ".src");
}