The generic code to use disqus comments, adapted to haml

disqus_comment_count.haml

:javascript
    var disqus_shortname = 'YOUR-SITE';
    (function () {
    var s = document.createElement('script'); s.async = true;
    s.src = 'http://disqus.com/forums/YOUR-SITE/count.js';
    (document.getElementsByTagName('HEAD')[0] || document.getElementsByTagName('BODY')[0]).appendChild(s);
    }());

disqus_embed.haml

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

%noscript
    Please enable JavaScript to view the
    %a{:href=>"http://disqus.com/?ref_noscript=YOUR-SITE"} comments
    powered by Disqus.
%a.dsq-brlink{:href=>"http://disqus.com"}
    comments powered by 
    %span.logo-disqus Disqus