var req = null;
function jah(url,target) {
   document.getElementById(target).innerHTML = 'sending...';
    
   try {
      req = new XMLHttpRequest();
   } catch (tryMS) {
      try {
         req = new ActiveXObject("Msxml2.XMLHTTP");
      } catch (otherMS) {
         try {
            req = new ActiveXObject("Microsoft.XMLHTTP");
         } catch (failed) {
            req = null;
         }
      }
   }
   if (req == null)
      alert("Error creating request object!");
   else {
      req.onreadystatechange = function() {jahDone(target);};
      req.open("GET", url, true);
      req.send(null);
   }
}    

function jahDone(target) {
    // only if req is "loaded"
    if (req.readyState == 4) {
        // only if "OK"
        if (req.status == 200) {
            results = req.responseText;
            document.getElementById(target).innerHTML = results;
        } else {
            document.getElementById(target).innerHTML="jah error:\n" +
                req.statusText;
        }
    }
}