var rollOverArr=new Array();
   function setrollover(OverImgSrc,pageImageName) {
      if (! document.images)return;
      if (pageImageName == null)
         pageImageName = document.images[document.images.length-1].name;
      rollOverArr[pageImageName]=new Object;
      rollOverArr[pageImageName].overImg = new Image;
      rollOverArr[pageImageName].overImg.src=OverImgSrc;
   }

   function rollover(pageImageName) {
      if (! document.images)return;
      if (! rollOverArr[pageImageName])return;
      if (! rollOverArr[pageImageName].outImg) {
         rollOverArr[pageImageName].outImg = new Image;
         rollOverArr[pageImageName].outImg.src = document.images[pageImageName].src;
      }
      document.images[pageImageName].src=rollOverArr[pageImageName].overImg.src;
   }

   function rollout(pageImageName) {
      if (! document.images)return;
      if (! rollOverArr[pageImageName])return;
      document.images[pageImageName].src=rollOverArr[pageImageName].outImg.src;
   }

   setrollover('/img/menu/home-sel.gif', 'home');
   setrollover('/img/menu/attivita-sel.gif', 'attivita');
   setrollover('/img/menu/marchi-sel.gif', 'marchi');
   setrollover('/img/menu/immagini-sel.gif', 'immagini');
   setrollover('/img/menu/storia-sel.gif', 'storia');
   setrollover('/img/menu/certificazioni-sel.gif', 'certificazioni');
   setrollover('/img/menu/link-sel.gif', 'link');
   setrollover('/img/menu/contatti-sel.gif', 'contatti');