function login (email, password, callback) {
  var xpath = require('xpath')
    , xmldom = require('xmldom')
    , xml2js = require('xml2js');
  var dom = xmldom.DOMParser;
  var builder = new xml2js.Builder();
  var reqXml = builder.buildObject({'methodCall':{
    'methodName':'wp.getProfile',
    'params':[
      {'param':{'value':{'i4':0}}}, 
      {'param':{'value':email}}, 
      {'param':{'value':password}}
     ]
  }});
  
  request.post({
    url:  'https://www.menoraway.com/xmlrpc.php',
    body: reqXml,
    encoding: 'utf8',
    method: 'POST',
    headers: { 'Content-Type' : 'application/xml' }
  }, function (err, response, body) {
  
    if (err) return callback(err);
    var parser = new xml2js.Parser();
    return parser.parseString(body, function(err, doc) {
      if(err) return callback(err);
      //throw new Error(JSON.stringify(doc));
      var mr = doc.methodResponse;
      if('fault' in mr) {
        if(mr.fault[0].value[0].struct[0].member[0].value[0].int[0] === '403') {
          return callback(new WrongUsernameOrPasswordError(email, mr.fault[0].value[0].struct[0].member[1].value[0]));
        } else {
          return callback(new Error(mr.fault[0].value[0].struct[0].member[1].value[0]));
        }
      } else {
        var result = {
          user_id: null,
          username: null,
          nickname: null,
          email: null,
          email_verified: true
        };
        mr.params[0].param[0].value[0].struct[0].member.forEach(function(prop) {
          if(prop.name[0] in result) {
            result[prop.name[0]] = prop.value[0].string[0];
          }
        });
        if(result.user_id === null || 
           result.username === null || 
           result.nickname === null || 
           result.email === null) {
          return callback(new Error("Faield to parse login response: "+JSON.stringify(doc)));
        }
        return callback(null, result);
      }
    });
  });

}