ym_submit_with_click_id.js

// this could be minified by their build system
//
(function(window,document){
  var tokenizer = function(key, searchString) {
    var result = new RegExp(key + "=([^&]*)", "i").exec(searchString || window.location.search);
    return result && unescape(result[1]) || "";
  };
  var clickId = tokenizer('click_id');
  if(!clickId || clickId.length < 1){
    return;
  }
  [].forEach.call(document.getElementsByClassName('ym_tag_with_click'),function(element){
    // this is only for this advertiser
    var input = element.getAttribute('value');
    if(input && input.indexOf('click_id') === -1) {
      element.setAttribute('value', input + '?click_id=' +  clickId);
    }
  });
})(window,document);