Basic scrollTo function

app.js

$('.primary-nav').on('click', 'a', function(e) {
	e.preventDefault();
	var target = $(this).attr('href');
	var destination = $(target).offset().top;
	$('html:not(:animated),body:not(:animated)').stop().animate({
		scrollTop: destination - 60
	}, 600);
	return true;
});