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/index/pl/firma1.gif";
 firmaoff = new Image();
 firmaoff.src="images/index/pl/firma.gif";
 
 aktualnoscion = new Image();
 aktualnoscion.src="images/index/pl/aktualnosci1.gif";
 aktualnoscioff = new Image();
 aktualnoscioff.src="images/index/pl/aktualnosci.gif";

 ofertaon = new Image();
 ofertaon.src="images/index/pl/oferta1.gif";
 ofertaoff = new Image();
 ofertaoff.src="images/index/pl/oferta.gif";

 kontakton = new Image();
 kontakton.src="images/index/pl/kontakt1.gif";
 kontaktoff = new Image();
 kontaktoff.src="images/index/pl/kontakt.gif";
 
 wyroznieniaon = new Image();
 wyroznieniaon.src="images/index/pl/wyroznienia1.gif";
 wyroznieniaoff = new Image();
 wyroznieniaoff.src="images/index/pl/wyroznienia.gif";
 
 englishon = new Image();
 englishon.src="images/index/pl/english1.gif";
 englishoff = new Image();
 englishoff.src="images/index/pl/english.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;
   }
 }

}