function ahah(url, target) {

  document.getElementById(target).innerHTML = ' Fetching data...';

  if (window.XMLHttpRequest) {

    req = new XMLHttpRequest();

  } else if (window.ActiveXObject) {

    req = new ActiveXObject("Microsoft.XMLHTTP");

  }

  if (req != undefined) {

    req.onreadystatechange = function() {ahahDone(url, target);};

    req.open("GET", url, true);

    req.send("");

  }

}  



function ahahDone(url, target) {

  if (req.readyState == 4) { // only if req is "loaded"

    if (req.status == 200) { // only if "OK"

      document.getElementById(target).innerHTML = req.responseText;

    } else {

      document.getElementById(target).innerHTML=" AHAH Error:\n"+ req.status + "\n" +req.statusText;

    }

  }

}