<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="pl">

<head>
  <title>Test page</title>
  <script type="text/javascript" src="advajax.js"></script>
  <script type="text/javascript">
    setInterval("advAJAX.get({ url: 'ping.php' });", 180000);
  </script>
</head>

<body>

<p>
  To jest strona HTML.
</p>

</body>
</html>