Smooth scroll to div id jQuery

I've been trying to get a scroll to div id jquery code to work correctly. Based on another stack overflow question i tried the following

DEMO http://jsfiddle.net/kevinPHPkevin/8tLdq/

$('#myButton').click(function() {
   $.scrollTo($('#myDiv'), 1000);
});

But it didn't work. It just snaps to the div. I also tried

$('#myButton').click(function(event) {
     event.preventDefault();
   $.scrollTo($('#myDiv'), 1000);
});

With no progress.

You need to animate the html, body

DEMO http://jsfiddle.net/kevinPHPkevin/8tLdq/1/

$("#button").click(function() {
    $('html, body').animate({
        scrollTop: $("#myDiv").offset().top
    }, 2000);
});

If you want to override standard href-id navigation on the page without changing the HTML markup for smooth scrolling, use this (example):

// handle links with @href started with '#' only
$(document).on('click', 'a[href^="#"]', function(e) {
    // target element id
    var id = $(this).attr('href');

    // target element
    var $id = $(id);
    if ($id.length === 0) {
        return;
    }

    // prevent standard hash navigation (avoid blinking in IE)
    e.preventDefault();

    // top position relative to the document
    var pos = $id.offset().top;

    // animated top scrolling
    $('body, html').animate({scrollTop: pos});
});

here is my 2 cents:

Javascript:

$('.scroll').click(function() {
    $('body').animate({
        scrollTop: eval($('#' + $(this).attr('target')).offset().top - 70)
    }, 1000);
});

Html:

<a class="scroll" target="contact">Contact</a>

and the target:

<h2 id="contact">Contact</h2>