if (document.images)
{
   if(lang=='cs')
   {
     pickatalogon= new Image(173,41);
     pickatalogon.src="/images/katalog-over.jpg";     
     pickatalogoff= new Image(173,41);
     pickatalogoff.src="/images/katalog.jpg";     
   }
   else 
   {
     pickatalogon= new Image(173,41);
     pickatalogon.src="/images/katalog-en-over.jpg";     
     pickatalogoff= new Image(173,41);
     pickatalogoff.src="/images/katalog-en.jpg";     
    }
    
     piceshopon= new Image(223,44);
     piceshopon.src="/images/eshop-over.gif";     
     piceshopoff= new Image(223,44);
     piceshopoff.src="/images/eshop.gif";     
    
     //preload:
     picpreload1 = new Image();
     picpreload1.src = "/images/thumb-icon-over.gif"; 
     picpreload2 = new Image();
     picpreload2.src = "/images/bg-input-over.gif"; 
     
}

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

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