Javascript Snippet to allow third parties to attach tracking events.

gistfile1.txt

  (function() {
    var script = document.createElement('script');
    script.type = 'text/javascript';
    script.src = 'http://cdn.mark.reevoo.com/assets/reevoo_mark.js';
    var s = document.getElementById('reevoomark-loader');
    s.parentNode.insertBefore(script, s);
  })();
 
  afterReevooMarkLoaded = [function(){
    ReevooApi.load('YOUR_TRKREF_HERE', function(retailer){
      var unrendered_badge_count = document.getElementsByClassName('reevoomark').length;
      //include reputation badges
      unrendered_badge_count += document.getElementsByClassName('reevoo_reputation').length;
      retailer.init_badges();
      retailer.init_reevoo_reputation_badges();
 
      var interval = window.setInterval(function(){
        var rendered_badges = document.getElementsByClassName('reevoomark_badge');
        if(rendered_badges.length == unrendered_badge_count){
          // attach tracking to each of the new elements
          // each badge has a data-sku and a data-score to help
          // you identify the correct badge.
        
          window.clearInterval(interval);
        }
      }, 200);
    });
  }];

var unrendered_badge_length = document.getElementsByClassName('reevoomark').length;

That's a count of unrendered badges right? So maybe unrendered_badge_count?

Also, could there not be other elements on the page with the class name of reevoomark which could offset the count and mean that the tracking never gets added?