offset and one page nav

if ( $('body').hasClass('logged-in') ) {
        var top_offset = $('.header-area').height() + 32;
    } else {
        var top_offset = $('.header-area').height() - 0;
    }

    $('.primary-nav-one-page nav').onePageNav({
         scrollOffset: top_offset,
         scrollSpeed: 750,
         easing: 'swing',
         currentClass: 'active',
    });