gistfile1.txt

// For Aaron
// You can replace the passed anonymous function with a callback if you'd rather. 

<script src="/javascripts/prototype.js" type="text/javascript"></script>
<script type='text/javascript'>

  new PeriodicalExecuter(function(pe) {
    if (!confirm('Want me to annoy you again later?'))
      pe.stop();
  }, 5);

</script>

// If you're using jQuery instead, use the jQuery Timer Plugin
//
<script src="/javascripts/jquery.js" type="text/javascript"></script>
<script src="/javascripts/jquery.timer.js" type="text/javascript"></script>
<script type='text/javascript'>
  $.timer(1000, function (timer) {
      alert("hello");
      timer.stop();
  });
</script>

// Or if you're trying to "roll your own'
// use setTimeout and recursively call yourself. 
// Something like this, I think: 

<script type='text/javascript'>
  function invokeCallback() {
    alert('I am unstoppable!!!!');
    setTimeout(invokeCallback(), 1000);
  }
</script>