// Novice code for async
var _qevents = _qevents || [];
  (function() {
   var elem = document.createElement('script');

   elem.src = (document.location.protocol == "https:" ? "https://secure" : "http://edge") + ".quantserve.com/quant.js";
   elem.async = true;
   elem.type = "text/javascript";
   var scpt = document.getElementsByTagName('script')[0];
   scpt.parentNode.insertBefore(elem, scpt);  
  })();

// Advanced code for async
/*
  var _qevents = _qevents || [];

  (function() {
   var elem = document.createElement('script');

   elem.src = (document.location.protocol == "https:" ? "https://secure" : "http://edge") + ".quantserve.com/quant.js";
   elem.async = true;
   elem.type = "text/javascript";
   var scpt = document.getElementsByTagName('script')[0];
   scpt.parentNode.insertBefore(elem, scpt);  
  })();

*/