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") {

 tekston = new Image();
 tekston.src="images/index/61_1.gif";
 tekstoff = new Image();
 tekstoff.src="images/index/61.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;
   }
 }

}