function mycol_login() {
  var username = document.getElementById("login_username").value;
  var password = document.getElementById("login_password").value;
    
  password = sha1Hash(password);
  var url = "checkLogin.php?username=" + username + "&password=" +password;
alert(url);
  createRequest();
  request.open("GET", url, true);
  request.onreadystatechange = updatePage;
  request.send("");
}

function updatePage() {
alert('updatePage');
  if (request.readyState == 4) {
    if (request.status == 200) {
      var response = request.responseXML.documentElement;
      var valid = response.getElementsByTagName('valid')[0].firstChild.data;
      if( valid == "No" ) {
        var url = "http://www.catholic.org/mycol/signup.php?errorcode=934703d";
        window.location=url;
      } else if( valid == "Yes" ) {
        var url = "http://www.catholic.org/mycol/cookie.php?id=" + id + "&username=" +username;
        window.location=url;
      }
    }
  }
}