spoot.html

<script type="text/javascript" 
        src="http://localhost:9090/faye.js">
      </script>
<script type="text/javascript">
    var client = new Faye.Client('http://localhost:9090/faye', {
        timeout: 120
        });
function write_out() {
  var a = Array.prototype.slice.call(arguments);
  for (var i=0;i < a.length; i++ ) {
    document.getElementById('out_text').value += a[i];
  };
};
function go(){
  var channel = document.getElementById('in_channel').value;
  var text = document.getElementById('in_text').value;
  client.subscribe('/'+channel, function(message) {
      var c = channel;
      write_out(channel,message.text);
    });
  client.publish('/'+channel, {text:text});
};
</script>
channel
<input id='in_channel' type='text' name='channel'></input>
text
<input id='in_text' type='text' name='text'></input>
<input type='submit' name='submit' onclick="go();"></input>
channel and text mash
<textarea id='out_text'></textarea>