I have already shown you how to do this:
It makes no difference where you jump, you just need to change the target using the example in the other topic, even with a downloadable example.
var target = $('#topLink');
$('html,body').animate({
scrollTop: target.offset().top
// this value sets the speed (1000 is 1 second)
}, 1000);
I added an ID to the <a> which is the target, and I added the code above to the arrow.