function login(){
  var obj = '{"username":"'+$('#username').val()+'", "password":"'+$('#password').val()+'"}';
  $.ajax({
    type:'GET',
    dataType :'json',
    data:{"username": $("#username").val(),
          "password": $("#password").val()},
    url:'http://localhost:10351/function',
    success: function (data) {
        alert("ajax callaback response:"+JSON.stringify(data));
    }
  })

var express = require('express');
var app = express();
var http = require("http");
var server = http.createServer();
var portNumber = 10901;
app.use(express.static('public'));

app.get('/function', function(req, res) {
    console.log(req.query);
    res.send(JSON.stringify(req.query));
});

app.listen(portNumber, function() {
    console.log('Currently listening on port ' + portNumber);
});