if (document.images) {
      tnavhomeon = new Image(52, 16);
      tnavhomeon.src = "/images/redux/tnav-home-on.gif";
      tnavhomeoff = new Image(52, 16);
      tnavhomeoff.src = "/images/redux/tnav-home-off.gif";

      tnavabouton = new Image(59, 16);
      tnavabouton.src = "/images/redux/tnav-about-on.gif";
      tnavaboutoff = new Image(59, 16);
      tnavaboutoff.src = "/images/redux/tnav-about-off.gif";

      tnavshopon = new Image(51, 16);
      tnavshopon.src = "/images/redux/tnav-shop-on.gif";
      tnavshopoff = new Image(51, 16);
      tnavshopoff.src = "/images/redux/tnav-shop-off.gif";

      tnavstoreson = new Image(110, 16);
      tnavstoreson.src = "/images/redux/tnav-stores-on.gif";
      tnavstoresoff = new Image(110, 16);
      tnavstoresoff.src = "/images/redux/tnav-stores-off.gif";

      tnavnewson = new Image(53, 16);
      tnavnewson.src = "/images/redux/tnav-news-on.gif";
      tnavnewsoff = new Image(53, 16);
      tnavnewsoff.src = "/images/redux/tnav-news-off.gif";

      tnavcustomeron = new Image(135, 16);
      tnavcustomeron.src = "/images/redux/tnav-customer-on.gif";
      tnavcustomeroff = new Image(135, 16);
      tnavcustomeroff.src = "/images/redux/tnav-customer-off.gif";
      
      blogon = new Image(35, 26);
      blogon.src = "/images/redux/btn-blog-over.gif";
      blogoff = new Image(35, 26);
      blogoff.src = "/images/redux/btn-blog.gif";
  
      checkouton = new Image(89, 13);
      checkouton.src = "/images/redux/hdr-checkout-over.gif";
      checkoutoff = new Image(89, 15);
      checkoutoff.src = "/images/redux/hdr-checkout.gif";
      
      changeon = new Image(61, 13);
      changeon.src = "/images/redux/hdr-change-over.gif";
      changeoff = new Image(61, 15);
      changeoff.src = "/images/redux/hdr-change.gif"; 
  
  
  }

   function img_act(imgName) {
      if (document.images) {
         imgOn = eval(imgName + "on.src");
         document [imgName].src = imgOn;
      }
   }

   function img_inact(imgName) {
      if (document.images) {
         imgOff = eval(imgName + "off.src");
         document [imgName].src = imgOff;
      }
   }