NodeJS and socket.io can't send message

today I follow an tutorial by Gonzalo Ayuso at http://gonzalo123.com/2011/05/23/real-time-notifications-part-ii-now-with-node-js-and-socket-io/ but it can't send the message Here is my server.js

var http = require('http');
var io = require('socket.io');

server = http.createServer(function(req, res){
});
server.listen(8000);

//socket.io
var socket = io.listen(server);
socket.set('transports', ['websocket']);

console.log("Start");
socket.on('connection', function(client){
      client.on('message', function(msg){
          console.log(msg);
          socket.broadcast(msg);
      })
    });

and the client.html

<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
        <title>Comet Test</title>
    </head>
    <body>
        <p><a id='customAlert' href="#" onclick='socket.send("customAlert")'>publish customAlert</a></p>
        <p><a id='customAlert2' href="#" onclick='socket.send("customAlert2")'>publish customAlert2</a></p>
        <script src="http://localhost:8000/socket.io/socket.io.js" type="text/javascript"></script>
        <script type="text/javascript">
// Start the socket
var socket = io.connect('http://localhost:8000');

socket.on('message', function(msg){
    console.log(msg);
});
        </script>
    </body>
</html>

I have edited it just a little bit to run on my server. But the client doesn't send message to server. Can anybody help me? Sorry for my bad English.

I have found out that the client can't connect to server but I don't know why?

My computer is running xampp with apache server. Maybe it's problem?

Updated: I have just set transports to xhr-polling and it connect success. Why doesn't it accept websocket?

you need to read more carefully the tutorials about socket.io first of all to call some event, you need to emit the event name:

socket.emit('my other event', { my: 'data' });

thats mean, on your onclick in anchor need to call socket.emit ..., or to call some function like:

function call_my_event(name){

    socket.emit(name,{my : 'data'});
}

I have found out my problem. It's about firewall or proxy or something else in my computer block websocket protocol. I tested that code on another computer and it works fine. So I have to re-install my system and websocket is available for me :D