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") {

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

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

 kuchniaon = new Image();
 kuchniaon.src="images/page/kuchnia1.gif";
 kuchniaoff = new Image();
 kuchniaoff.src="images/page/kuchnia.gif";

 restauracjaon = new Image();
 restauracjaon.src="images/page/restauracja1.gif";
 restauracjaoff = new Image();
 restauracjaoff.src="images/page/restauracja.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;
   }
 }

}