addEventListener('DOMContentLoaded', function () {
    var hlbaseUri = "/js/";
    var lb = document.querySelectorAll("code[class^='language-']");

    
    var langs = [];

    
    function highlight(nodes) {
      for (i=0; i < nodes.length; i++) {
          hljs.highlightBlock(nodes[i]);
      }
    }

    
    function loadLanguages(uris, callback) {
      uris.forEach(function(uri) {
        var sc = document.createElement('script');
        sc.src = uri;
        sc.async = false; 
        if (uris.indexOf(uri) == uris.length-1) {
          sc.onload = callback;
        }
        document.head.appendChild(sc);
      });
    }

    
    if (lb.length > 0) {
      
      var st = document.createElement('link');
      st.rel = "stylesheet";
      st.href = "/css/lib/atom-one-light.min.css";
      document.head.appendChild(st);

      
      var jss = [hlbaseUri + "highlight.min.js"];
      
      for (i=0; i < lb.length; i++) {
        lang = lb[i].className.replace('language-','');
        lurl = hlbaseUri + "highlightjs/" + lang + ".min.js";
        if (!(langs.includes(lang) || jss.includes(lurl))) {
          jss.push(lurl);
        }
      }
      
      loadLanguages(jss, () => {highlight(lb)});
    }
  });