jquery timeout reload

<html>
<head><title>as</title></head>
<body>
<div id="selesai">tes</div>
</body>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js"></script>
<script type='text/javascript'>

function update() {
  $.get("aha.php", function(data) {
    $("#selesai").html(data);
    window.setTimeout(update, 10000);
  });
}

$(document).ready(function() {
    update();
});
</script>

</html>