jquery-lazy-load-discus-comments.js

$(document).ready(function() {
    var ds_loaded = false, top = $("#disqus_thread").offset().top;
    window.disqus_developer = 1;
    window.disqus_shortname = 'dragoncrew';

    function check(){
        if ( !ds_loaded && $(window).scrollTop() + $(window).height() > top ) {
            $.ajax({
                type: "GET",
                url: "http://" + disqus_shortname + ".disqus.com/embed.js",
                dataType: "script",
                cache: true
            });
            ds_loaded = true;
        }
    }

    $(window).scroll(check);
    check();
});