var $blogID;

function loadDisqusComments(disqus_shortname) {
    if (disqus_shortname != $blogID) {
        var s = document.createElement('script'); s.async = true;
        s.type = 'text/javascript';
        s.src = 'http://' + disqus_shortname + '.disqus.com/count.js';
        (document.getElementsByTagName('HEAD')[0] || document.getElementsByTagName('BODY')[0]).appendChild(s);
        $blogID = disqus_shortname;
    }
}