index.html

<html>
<head>
  <script src="http://code.jquery.com/jquery-1.6.4.min.js"></script>
  <script>
  // client code here
	var counter = 0;
	var poll = function() {
	  $.getJSON('/poll/'+counter, function(response) {
	     counter = response.count;
	     var elem = $('#output');
	     elem.text(elem.text() + response.append);
	     poll();
	  });
	}
	poll();
  </script>
</head>
<body>
 <textarea id="output" style="width: 100%; height: 100%;">
 </textarea>
</body>
</html>