// creates a new http request to be sent to the nodejs server
function createNewUser(username, password, email) {

    // The url is the URL of our local nodejs server
    var userCreateRequest = new XMLHttpRequest();
    userCreateRequest.open( "POST", "http://<machine's IP>:8080/api/users" );

    // Create json object for user data
    var user = "name="+username+"&password="+password+"&email="+email;
    alert(user);

    // set content type for http request
    userCreateRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded");

    // Event listern for server response
    // userCreateRequest.addEventListener("readystatechange", processRequest, false);

    // Call process request whenever state changes
    userCreateRequest.onreadystatechange = function() {
            alert(this.readyState + ", " + this.status);
            if (this.readyState == 4 && this.status == 200) {

                    var response = this.response;
                    alert(response.name);

            }

    }

    // Send user data to server
    userCreateRequest.send(user);

}

router.route('/users')

    .post(function(req, res) { //create a new user

            var user = new User();

            user.name = req.body.name;
            user.password = req.body.password;
            user.email = req.body.email;

            user.save(function(err) { //add user object to database

                    if(err)
                            res.send(err);

                    res.status(200).json(user);

            });

    });