initSocialScroll

// Initiate scrolling social menu on single blog posts
function initSocialScroll() {
  if($('article').hasClass('single-blog')) {
    setTimeout(function() {
      var $hornav = $('#horizontal_nav');
      var $socialWrap = $('.social-like-wrapper');
      var $_article = $('.single-blog .entry-content');

      var articleTop = $_article.offset().top;
      var articleHeight = $_article.height();
      
      if(articleHeight > 500) {
        $(window).scroll(function() {
          var navHeight = $hornav.height();
          var _scroll = $(document).scrollTop();
          // console.log(articleTop + '/' + articleHeight);
          // console.log(_scroll);
          if(_scroll - articleTop > navHeight*-1) {
            if(_scroll - (articleHeight+articleTop-(navHeight+400)) > 0) {
              $socialWrap.css({'position':'relative', 'top': (articleHeight-400) + 'px'});
            } else {
              $socialWrap.css({'position':'fixed', 'top': (navHeight+30) + 'px'});
            }
          } else {
            $socialWrap.css({'position':'relative', 'top': '0'});
          }
        });
      }
    }, 1000);
  }
}