Letter by letter scroll

Example

Below, the message "There is Hope - Computer Hope" should display, letter by letter.

Source code

<p id="scroller"></p>
<script type="text/javascript">
// Original: Pun Man Kit [email protected]
function scroll(position) {
 var msg = "There is Hope - Computer Hope.";
 var out = "";
 var sc = document.getElementById("scroller");
 for (var i=0; i < position; i++){
  out += msg.charAt(i);
 }
 out += msg.charAt(position);
 sc.innerHTML = out;
 position++;
 if (position != msg.length) {
  window.setTimeout(function() { scroll(position); }, 50);
 }
 else {
  window.setTimeout(function() { scroll(0); }, 2000);
 }
}
scroll(0);
</script>