if (document.images)
 {                
   photo0on = new Image();
   photo0on.src = "buttons/home_aktywny.gif";
   photo0off = new Image();
   photo0off.src = "buttons/home.gif";

   photo1on = new Image();
   photo1on.src = "buttons/diningroombar_aktywny.gif";
   photo1off = new Image();
   photo1off.src = "buttons/diningroombar.gif";

   photo2on = new Image();
   photo2on.src = "buttons/bedrooms_aktywny.gif";
   photo2off = new Image();
   photo2off.src = "buttons/bedrooms.gif";

   photo3on = new Image();
   photo3on.src = "buttons/location_aktywny.gif";
   photo3off = new Image();
   photo3off.src = "buttons/location.gif";

   photo4on = new Image();
   photo4on.src = "buttons/tariff_aktywny.gif";
   photo4off = new Image();
   photo4off.src = "buttons/tariff.gif";

   photo5on = new Image();
   photo5on.src = "buttons/contactus_aktywny.gif";
   photo5off = new Image();
   photo5off.src = "buttons/contactus.gif";
 }

function change1(imgName)
 {
   if (document.images)
    {
      imgOn = eval(imgName + "on.src");
      document [imgName].src = imgOn;
    }
 }

function change2(imgName)
 {
   if (document.images)
    {
      imgOff = eval(imgName + "off.src");
      document [imgName].src = imgOff;
    }
 }