function nav(ff,var3,var1) {
  val=navigator.appName;
  jav=navigator.appVersion.charAt(0);
  if (val == "Netscape" && (jav == "2" || jav == "3")) {
    test=false;
  } else {
    test=true;
  }
  if (test==true) {
    app=screen.width + "x" + screen.height;
    val2=""+escape(top.document.referrer);
    stat=navigator.javaEnabled();
    if (val != "Netscape")
    {
      skh=screen.colorDepth;
    }
    else
    {
      skh=screen.pixelDepth;
    }
    as="ssto="+app+"&referer="+val2+"&colors="+skh;
    as=as+"&java="+stat+"&cust1="+var3+"&cust2="+var1+"&js=1";
    document.write("<img height=\"1\" width=\"1\" border=\"0\" src=\""+ff+"?"+as+"\" alt=\"\">");
  }
}