<a id="reklama" href="javascript://">Скачать</a>
<div id="teasernet">
<script type="text/javascript">
  teasernet_blockid = 372570;
  teasernet_padid = 157884;
  </script>
<script type="text/javascript" src="http://daffaite.com/57/d/f79/9/af"></script>
</div>
<div id="download">Теперь вы можете скачать</div>

<script type="text/javascript">
$('#download, #teasernet').hide();
$('#reklama').click(function() {
$('#reklama').hide();
$('#teasernet').fadeIn(1000).delay(3000).fadeOut(1000);
$('#download').delay(5000).fadeIn(1000);
});
</script>  

<script src="http://code.jquery.com/jquery-1.7.1.js"></script>