/* Client-side access to querystring name=value pairs
  Version 1.3
  28 May 2008

  License (Simplified BSD):
  http://adamv.com/dev/javascript/qslicense.txt
*/
function Querystring() { // optionally pass a querystring to parse
  this.params = {};
  var qs = location.search.substring(1, location.search.length);

// Turn <plus> back to <space>
// See: http://www.w3.org/TR/REC-html40/interact/forms.html#h-17.13.4.1
  qs = qs.replace(/\+/g, ' ');
  var args = qs.split('&'); // parse out name/value pairs separated via &

// split out each name=value pair
  for (var i = 0; i < args.length; i++) {
    var pair = args[i].split('=');
    var name = decodeURIComponent(pair[0]);

    var value = (pair.length==2)
      ? decodeURIComponent(pair[1])
      : name;

    this.params[name] = value;
  }
}

Querystring.prototype.get = function(key) {
  return this.params[key];
}

Querystring.prototype.contains = function(key) {
  return (this.params[key] != null);
}

var request = false;
try {
  request = new XMLHttpRequest();
} catch (trymicrosoft) {
  try {
    request = new ActiveXObject("Msxml2.XMLHTTP");
  } catch (othermicrosoft) {
    try {
      request = new ActiveXObject("Microsoft.XMLHTTP");
    } catch (failed) {
      request = false;
    }
  }
}

var qs = new Querystring()
if(qs.contains("pk") && qs.contains("tag")) {
  url = "http://atp.mail.broadcamp56.net/lt/5/11/" +
         qs.get("pk") + "/" + qs.get("tag")
  if (request) {
    request.open("GET", url, true);
    request.send(null);
  } else {
    alert("Not requesting " + url)
  }
}