if (document.images) {

          img1on = new Image(130,40);
          img1on.src = "gif/homeon.gif";

          img2on = new Image(130,40);
          img2on.src = "gif/menuon.gif";

          img3on = new Image(130,40);
          img3on.src = "gif/specon.gif";
          
          img4on = new Image(130,40);
          img4on.src = "gif/brewon.gif";
          
          img5on = new Image(130,40);
          img5on.src = "gif/conon.gif";
          
          img6on = new Image(130,40);
          img6on.src = "gif/funstuffon.gif";
          
          img7on = new Image(130,40);
          img7on.src = "gif/musicon.gif";
          
          img8on = new Image(130,40);
          img8on.src = "gif/wineson.gif";
          
          img9on = new Image(130,40);
          img9on.src = "gif/bardrinkson.gif";
          
          img10on = new Image(130,40);
          img10on.src = "gif/hotdrinkson.gif";
          
          img1off = new Image(130,40);
          img1off.src = "gif/homeoff.gif";

          img2off = new Image(130,40);
          img2off.src = "gif/menuoff.gif";

          img3off = new Image(130,40);
          img3off.src = "gif/specoff.gif";
          
          img4off = new Image(130,40);
          img4off.src = "gif/brewoff.gif";
          
          img5off = new Image(130,40);
          img5off.src = "gif/conoff.gif";
          
          img6off = new Image(130,40);
          img6off.src = "gif/funstuffoff.gif";
          
          img7off = new Image(130,40);
          img7off.src = "gif/musicoff.gif";
          
          img8off = new Image(130,40);
          img8off.src = "gif/winesoff.gif";
          
          img9off = new Image(130,40);
          img9off.src = "gif/bardrinksoff.gif";
          
          img10off = new Image(130,40);
          img10off.src = "gif/hotdrinksoff.gif";
           
     }

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

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