adv.sample.postback.js

var addScriptTag =  function(url) {
  var node = document.createElement('script');
  node.type = 'text/javascript';
  node.async = true;
  node.src = ('https:' === document.location.protocol ? 'https:' : 'http:') + url;
  node.id = '' + new Date().getTime();
  var topelem = (document.getElementsByTagName('head')[0] ||
                 document.getElementsByTagName('body')[0]);
  topelem.appendChild(node);
};

// you need to extract {{click_id}} out of the url
// refer to ym_submit_with_click_id.js (https://gist.github.com/yieldmo/8700590)
var clickId = '22222'; 
addScript('//tkr.yieldmo.com/t_adt/adt?click_id' + clickId);