function MD5Password() {

  var username = document.login.elements["username"].value;
  var password = document.login.elements["password"].value;
  var hash = calcMD5(username+password);
  
  var str = calcMD5(hash + ":" + document.login.elements["challenge"].value);

  document.login.elements["response"].value = str;
  document.login.elements["password"].value = "";
  document.login.submit();
}

function ChangePassword(username) {

  var current = document.changepassword.elements["current"].value;
  var password = document.changepassword.elements["password"].value;
  var confirm = document.changepassword.elements["confirm"].value;

  var hash = calcMD5(username+current);
  document.changepassword.elements["currenthash"].value = hash;
  var hash = calcMD5(username+password);
  document.changepassword.elements["passwordhash"].value = hash;
  var hash = calcMD5(username+confirm);
  document.changepassword.elements["confirmhash"].value = hash;

  document.changepassword.elements["current"].value = "";
  document.changepassword.elements["password"].value = "";
  document.changepassword.elements["confirm"].value = "";

  document.changepassword.submit();
}