code facebook

<div id="fb-root"></div>
<script>(function(d, s, id) {
  var js, fjs = d.getElementsByTagName(s)[0];
  if (d.getElementById(id)) return;
  js = d.createElement(s); js.id = id;
  js.src = "//connect.facebook.net/th_TH/all.js#xfbml=1&appId=162817937165725";
  fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));</script>
<div class="fb-comments" data-href="http://mediath2.blogspot.com/" data-num-posts="20" data-width="650"></div>

วิธีดู ID : https://developers.facebook.com/tools/explorer/