Try this:
<script>
$(function () {
$(".clicky").click(function () {
var content_id = $(this).attr('href');
$('#content').fadeOut(2000, function(){
$(this).html($(content_id).html()).show("pulsate");
});
return false;
});
});
</script>
The problem you are having is that you aren't waiting for the fadeOut
to finish before you start switching out the content and showing the new content.