Why it does not work correctly? I need to create two different offsets. Small for up and bigest for down scrolling. This code do not work well.
// The same for all waypoints
$('body').delegate('section > article', 'waypoint.reached', function(event, direction) {
    var $active = $(this);
    if (direction === "up") {
        $active = $active.prev();
        $('section > article').waypoint({ offset: '10%' });
    }
    if (!$active.length) $active = $active.end();
            if (direction === "down") {
        $('section > article').waypoint({ offset: '60%' });
    }
    $('.link-active').removeClass('link-active');
    $('a[href=#'+$active.attr('id')+']').addClass('link-active');
});
// Register each section as a waypoint.
$('section > article#p1').waypoint({ offset: '28%' });
$('section > article').waypoint({ offset: '0' });   
 
     
    