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")
   {
     HomeOn= new Image(72,39);
     HomeOn.src="images/Buttons/ButtonOn.gif";
     CurrentOn= new Image(72,39);
     CurrentOn.src="images/Buttons/ButtonOn.gif";
     CalendarOn= new Image(72,39);
     CalendarOn.src="images/Buttons/ButtonOn.gif";
     EventOn= new Image(72,39);
     EventOn.src="images/Buttons/ButtonOn.gif";
     WhoOn= new Image(72,39);
     WhoOn.src="images/Buttons/ButtonOn.gif";
     HistoryOn= new Image(72,39);
     HistoryOn.src="images/Buttons/ButtonOn.gif";
     PhiloOn= new Image(72,39);
     PhiloOn.src="images/Buttons/ButtonOn.gif";
     OfficerOn= new Image(72,39);
     OfficerOn.src="images/Buttons/ButtonOn.gif";
     ContactOn= new Image(72,39);
     ContactOn.src="images/Buttons/ButtonOn.gif";

          
     HomeOff= new Image(72,39);
     HomeOff.src="images/Buttons/ButtonOff.gif";
     CurrentOff= new Image(72,39);
     CurrentOff.src="images/Buttons/ButtonOff.gif";
     CalendarOff= new Image(72,39);
     CalendarOff.src="images/Buttons/ButtonOff.gif";
     EventOff= new Image(72,39);
     EventOff.src="images/Buttons/ButtonOff.gif";
     WhoOff= new Image(72,39);
     WhoOff.src="images/Buttons/ButtonOff.gif";
     HistoryOff= new Image(72,39);
     HistoryOff.src="images/Buttons/ButtonOff.gif";
     PhiloOff= new Image(72,39);
     PhiloOff.src="images/Buttons/ButtonOff.gif";
     OfficerOff= new Image(72,39);
     OfficerOff.src="images/Buttons/ButtonOff.gif";
     ContactOff= new Image(72,39);
     ContactOff.src="images/Buttons/ButtonOff.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;
    }
 }