{% if site.google_sidead_slot %}
<section>
  <script type="text/javascript"><!--
  google_ad_client = "{{site.google_ad_client}}";
  google_ad_slot = "{{site.google_sidead_slot}}";
  google_ad_width = {{site.google_sidead_width}};
  google_ad_height = {{site.google_sidead_height}};
  //-->
  </script>
  <script type="text/javascript"
  src="//pagead2.googlesyndication.com/pagead/show_ads.js">
  </script>
</section>
{% endif %}