scrollTop jquery, scrolling to div with id?

Question

So this is the current code I have

$(document).ready(function() {
    $('.abouta').click(function(){
        $('html, body').animate({scrollTop:308}, 'slow');
        return false;
    });
    $('.portfolioa').click(function(){
        $('html, body').animate({scrollTop:708}, 'slow');
        return false;
    });
    $('.contacta').click(function(){
        $('html, body').animate({scrollTop:1108}, 'slow');
        return false;
    });
});

When you click a link e.g. 'abouta' it scrolls to that specific section of the page. I'd rather do a scrollTo and then the id of a div so that I don't have to keep changing the scrollTo position if I change padding etc. Is there any way? Thanks

Answer 1

instead of

$('html, body').animate({scrollTop:xxx}, 'slow');

use

$('html, body').animate({scrollTop:$('#div_id').position().top}, 'slow');

this will return the absolute top position of whatever element you select as #div_id