browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
  if ((browserName == "Netscape" && browserVer >= 3) || (browserName == "Microsoft Internet Explorer" && browserVer >=4)) {
    version = "n3";
  }
    else {
    version = "n2";
    alert ("This site requires a JavaScript-compatible browser");
  }
  
  
function navOut(name)
{
  if (version == "n3")
  {
    document[name].src="/nav/" + name + "_up.gif";
  }
}


function navOver(name)
{
  if (version == "n3")
  {
    document[name].src="/nav/" + name + "_ovr.gif";
  }
}



function navOut2(name)
{
  if (version == "n3")
  {
    document[name].src="../nav/" + name + "_up.gif";
  }
}


function navOver2(name)
{
  if (version == "n3")
  {
    document[name].src="../nav/" + name + "_ovr.gif";
  }
}