Fibonacci Numbers

<noscript>
  <dl style="list-style: disc">
    <dt>Fibonacci numbers</dt>
    <dd>1</dd>
    <dd>1</dd>
    <dd>2</dd>
    <dd>3</dd>
    <dd>5</dd>
    <dd>8</dd>
    &hellip;
  </dl>
</noscript>

<script type="text/javascript"><!--
function fib(n) {
  var a = 1, b = 1;
  var tmp;
  while (--n >= 0) {
    tmp = a;
    a += b;
    b = tmp;
  }
  return a;
}

document.writeln(fib(10));
// -->
</script>