I have installed node.js from here http://nodejs.org/ . in my windows8 machine. copied the example server code in my server.js file

var http = require('http');

http.createServer(function (req, res) {

  res.writeHead(200, {'Content-Type': 'text/plain'});

  res.end('Hello Worldn');

}).listen(1337, '127.0.0.1');

console.log('Server running at http://127.0.0.1:1337/');

then opened the node.js prompt and written node c:/node/server.js
but nothing happens.
I am a php developer just trying hands on it, any guidelines will really be helpful.