function __urchinTracker(_code){ //ajax
  var http = false;

  if(navigator.appName == "Microsoft Internet Explorer") {
    http = new ActiveXObject("Microsoft.XMLHTTP");
  } else {
    http = new XMLHttpRequest();
  }
  http.open("GET", "/__Urchin/"+_code+".htm");
  http.onreadystatechange=function() { }
  http.send(null);
}

function _urchinTracker(_code) { //iframe
   ifrm = document.createElement("IFRAME");
   ifrm.setAttribute("src", "/_Urchin/"+_code+".htm");
   ifrm.style.width = 1+"px";
   ifrm.style.height = 1+"px";
   ifrm.setAttribute("scrolling","no");
   ifrm.setAttribute("frameborder", 0);
   document.body.appendChild(ifrm);
}