browser_name = navigator.appName;
browser_version = parseFloat(navigator.appVersion);
if (browser_name == "Netscape" && browser_version >= 3.0)
{
version = "ok";
}
else if (browser_name == "Microsoft Internet Explorer" && browser_version >= 3.0)
{
version = "ok";
}
else
{
version = "bad";
}
if (version == "ok") {

 firmaon = new Image();
 firmaon.src="images/en/index/firma1.gif";
 firmaoff = new Image();
 firmaoff.src="images/en/index/firma.gif";

 ofertaon = new Image();
 ofertaon.src="images/en/index/oferta1.gif";
 ofertaoff = new Image();
 ofertaoff.src="images/en/index/oferta.gif";
 
 aktualnoscion = new Image();
 aktualnoscion.src="images/en/index/aktualnosci1.gif";
 aktualnoscioff = new Image();
 aktualnoscioff.src="images/en/index/aktualnosci.gif";

 kontakton = new Image();
 kontakton.src="images/en/index/kontakt1.gif";
 kontaktoff = new Image();
 kontaktoff.src="images/en/index/kontakt.gif";

 wspolpracaon = new Image();
 wspolpracaon.src="images/en/index/wspolpraca1.gif";
 wspolpracaoff = new Image();
 wspolpracaoff.src="images/en/index/wspolpraca.gif";

 bawelnaon = new Image();
 bawelnaon.src="images/en/index/bawelna1.jpg";
 bawelnaoff = new Image();
 bawelnaoff.src="images/en/index/bawelna.jpg";

 przedzaon = new Image();
 przedzaon.src="images/en/index/przedza1.jpg";
 przedzaoff = new Image();
 przedzaoff.src="images/en/index/przedza.jpg";

 enon = new Image();
 enon.src="images/en/index/flaga_en1.gif";
 enoff = new Image();
 enoff.src="images/en/index/flaga_en.gif";
 
 plon = new Image();
 plon.src="images/en/index/flaga_pl1.gif";
 ploff = new Image();
 ploff.src="images/en/index/flaga_pl.gif";

 

 

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


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

}