var username;

function login()
{
  var password = document.getElementById('password').value;
  var remember = document.getElementById('remember').value;
  var params;

  username = document.getElementById('username').value;

  params = 'username=' + username + '&password=' + sha1(password) + '&remember=' + remember;
  return HTTPRequest('POST', 'loginreq.php', params, loginResponse, false);
}

function loginResponse(httpResponse)
{
  var loginDiv = document.getElementById('login');

  loginDiv.innerHTML = httpResponse;
  return HTTPRequest('GET', 'drawmenureq.php', "", drawmenuResponse, false);
}

function drawmenuResponse(httpResponse)
{
  var menuDiv = document.getElementById('sidenav');

  menuDiv.innerHTML = httpResponse;
  return true;
}

function logout()
{
  var params = 'username=' + username;
  return HTTPRequest('POST', 'logoutreq.php', params, loginResponse, false);
}