server

var app = require('http').createServer(handler)
  , io = require('socket.io').listen(app)
  , fs = require('fs')

app.listen(88);

var texto = 'AAA';

function handler (req, res) {
  fs.readFile(__dirname + '/index.html',
  function (err, data) {
    if (err) {
      res.writeHead(500);
      return res.end('Error loading index.html');
    }

    res.writeHead(200);
    res.end(data);
  });
}

io.sockets.on('connection', function (socket) {

  socket.on('Text', function(data) {

    socket.emit('add', data);

  });

  socket.on('disconnect', function () {

    io.sockets.emit(' USER DISCONNECT ');

    });

});