There is a bit of shadows when animating the scrollbar with jQuery, what should you animate? Well the response is simple, the scrollTop.

So for example, if you want to slide the scrollbar to an element in particular, this is really easy, you would do:

// the :not:animated is just a protection
var destination = $("#ID").offset().top;
$("html:not(:animated),body:not(:animated)").animate({ scrollTop: destination});

It will slllllliiiiiiddddeeee.