<html>
<head>
  <title>Servant: counter</title>
  <style>
  body { text-align: center; }
  #counter { color: green; }
  #inc { margin: 0px 20px; background-color: green; color: white; }
  </style>
</head>
<body>
<span id="counter">Counter: 0</span>
<button id="inc">Increase</button>
or <a href="/doc">view the docs</a>

<script src="/jquery.min.js" type="text/javascript"></script>
<script src="/api.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function() {
  // we get the current value stored by the server when the page is loaded
  getcounter(updateCounter, alert);

  // we update the value every 1sec, in the same way
  window.setInterval(function() {
    getcounter(updateCounter, alert);
  }, 1000);
});

function updateCounter(response)
{
  $('#counter').html('Counter: ' + response.value);
}

// when the button is clicked, ask the server to increase
// the value by one
$('#inc').click(function() {
  postcounter(updateCounter, alert);
});
</script>
</body>
</html>