joseprando/index.html

## index.html
<!doctype html>
<html lang="pt-br">
<head>
    <title>socket.io chat</title>
    <meta charset='utf-8'>
    <script src="/socket.io/socket.io.js"></script>
    <script>
        function onLoad() {
            var socket = io.connect('http://192.168.1.151:8000');

            var logBt = document.getElementById('loginButton');
            logBt.onclick = function(e) {
                var nameInp = document.getElementById('nameInput');
                socket.emit('login', nameInp.value);
            };

            var sendBt = document.getElementById('sendButton');
            sendBt.onclick = function(e) {
                var msgTx = document.getElementById('mensagemInput');
                socket.emit('mensagem', msgTx.value + '\n');
            };

            socket.on('ready', function (data) {
                var chatTx = document.getElementById('chatTextArea');
                chatTx.value += data + ' entrou\n';
            });

            socket.on('mensagemclient', function (msg, name) {
                var chatTx = document.getElementById('chatTextArea');
                chatTx.value += name + ': ' + msg;
            });
        }

        window.onload = onLoad;
    </script>
</head>
<body>
    <h1>socket.io chat</h1>
    <input id="nameInput" type="text"/>
    <button id="loginButton">Login</button>
    <br/>
    <textarea id="chatTextArea" rows="5" cols="50"></textarea>
    <br/>
    <input id="mensagemInput" type="text"/>
    <button id="sendButton">Send</button>
</body>
</html>

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

function handler (req, res) {
    req.setEncoding('utf-8');
    fs.readFile(__dirname + '/index.html', 'utf8', 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('login', function (name) {
        socket.set('nickname', name, function() {
            console.log(name);
            socket.emit('ready', name);
            socket.broadcast.emit('ready', name);
        });
    });

    socket.on('mensagem', function (msg) {
        socket.get('nickname', function (err, name) {
            socket.emit('mensagemclient', msg, name);
            socket.broadcast.emit('mensagemclient', msg, name);
        });
    });

    socket.on('disconnect', function () {
        socket.get('nickname', function (err, name) {
            socket.broadcast.emit('mensagemclient', 'saiu', name);
        });
        console.log('saiu fora');
    });
});

app.listen(8000);
	<!doctype html>
	<html lang="pt-br">
	<head>
	<title>socket.io chat</title>
	<meta charset='utf-8'>
	<script src="/socket.io/socket.io.js"></script>
	<script>
	function onLoad() {
	var socket = io.connect('http://192.168.1.151:8000');

	var logBt = document.getElementById('loginButton');
	logBt.onclick = function(e) {
	var nameInp = document.getElementById('nameInput');
	socket.emit('login', nameInp.value);
	};

	var sendBt = document.getElementById('sendButton');
	sendBt.onclick = function(e) {
	var msgTx = document.getElementById('mensagemInput');
	socket.emit('mensagem', msgTx.value + '\n');
	};

	socket.on('ready', function (data) {
	var chatTx = document.getElementById('chatTextArea');
	chatTx.value += data + ' entrou\n';
	});

	socket.on('mensagemclient', function (msg, name) {
	var chatTx = document.getElementById('chatTextArea');
	chatTx.value += name + ': ' + msg;
	});
	}

	window.onload = onLoad;
	</script>
	</head>
	<body>
	<h1>socket.io chat</h1>
	<input id="nameInput" type="text"/>
	<button id="loginButton">Login</button>
	<br/>
	<textarea id="chatTextArea" rows="5" cols="50"></textarea>
	<br/>
	<input id="mensagemInput" type="text"/>
	<button id="sendButton">Send</button>
	</body>
	</html>
	var app = require('http').createServer(handler)
	, io = require('socket.io').listen(app)
	, fs = require('fs');

	function handler (req, res) {
	req.setEncoding('utf-8');
	fs.readFile(__dirname + '/index.html', 'utf8', 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('login', function (name) {
	socket.set('nickname', name, function() {
	console.log(name);
	socket.emit('ready', name);
	socket.broadcast.emit('ready', name);
	});
	});

	socket.on('mensagem', function (msg) {
	socket.get('nickname', function (err, name) {
	socket.emit('mensagemclient', msg, name);
	socket.broadcast.emit('mensagemclient', msg, name);
	});
	});

	socket.on('disconnect', function () {
	socket.get('nickname', function (err, name) {
	socket.broadcast.emit('mensagemclient', 'saiu', name);
	});
	console.log('saiu fora');
	});
	});

	app.listen(8000);