browserName=navigator.appName; 
browserVer=parseInt(navigator.appVersion);
  if ((browserName=="Netscape" && browserVer>=3) || (browserName=="Microsoft Internet Explorer" && browserVer>=4))    
  version="n3";
  else
    version="n2";
  if (version=="n3")
   {
     CompareOn= new Image(115,20);
     CompareOn.src="images/Buttons/CompareOn.gif";
     ConsiderOn= new Image(115,20);
     ConsiderOn.src="images/Buttons/ConsiderOn.gif";
     ContactOn= new Image(115,20);
     ContactOn.src="images/Buttons/ContactOn.gif";
     CustomerOn= new Image(115,20);
     CustomerOn.src="images/Buttons/CustomerOn.gif";
     FontOn= new Image(115,20);
     FontOn.src="images/Buttons/FontOn.gif";
     HomeOn= new Image(115,20);
     HomeOn.src="images/Buttons/HomeOn.gif";
     ServiceOn= new Image(115,20);
     ServiceOn.src="images/Buttons/ServiceOn.gif";
               
     CompareOff= new Image(115,20);
     CompareOff.src="images/Buttons/CompareOff.gif";
     ConsiderOff= new Image(115,20);
     ConsiderOff.src="images/Buttons/ConsiderOff.gif";
     ContactOff= new Image(115,20);
     ContactOff.src="images/Buttons/ContactOff.gif";
     CustomerOff= new Image(115,20);
     CustomerOff.src="images/Buttons/CustomerOff.gif";
     FontOff= new Image(115,20);
     FontOff.src="images/Buttons/FontOff.gif";
     HomeOff= new Image(115,20);
     HomeOff.src="images/Buttons/HomeOff.gif";
     ServiceOff= new Image(115,20);
     ServiceOff.src="images/Buttons/ServiceOff.gif";
        
   }

function lightup(imgName)
 {
   if (version=="n3")
    {
      imgOn=eval(imgName + "On.src");
      document[imgName].src= imgOn;
    }
 }

function turnoff(imgName)
 {
   if (version=="n3")
    {
      imgOff=eval(imgName + "Off.src");
      document[imgName].src= imgOff;
    }
 }