// JavaScript Document
// Obtained from:
// http://microformats.org/wiki/rest/ahah
// http://www.opendarwin.org/~drernie/src/ahah.js

function ajax(req, url, target) {
  // document.getElementById(target).innerHTML = "<img src='ajax-loader.gif'>";
if (window.XMLHttpRequest) {
    req = new XMLHttpRequest();
  } else if (window.ActiveXObject) {
    req = new ActiveXObject("Microsoft.XMLHTTP");
  }
  if (req != undefined) {
    req.onreadystatechange = function() {ajaxDone(req, target);};
    req.open("GET", url, true);
    req.send("");
  }
}

function ajaxDone(req, 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="ajax error:\n"+req.statusText;
    }
  }
}