var disqus_shortname = 'teachingpages'; 

<!-- The following are highly recommended additional parameters. Remove the slashes in front to use.
 // var disqus_identifier = 'unique_dynamic_id_1234';
// var disqus_url = 'http://example.com/permalink-to-page.html'; -->

(function() {
    var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true;
    dsq.src = 'http://' + disqus_shortname + '.disqus.com/embed.js';
    (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq);
})();