fan_converter_async_load.js

<script>
...

(function() {
    function async_load(){
      var script, scriptTag;
      script = document.createElement('script');
      script.src = 'http://fanconverter.wetpaint.me/1.0.1/application-fanconverter.js';
      scriptTag = document.getElementsByTagName('script')[0];
      scriptTag.parentNode.insertBefore(script, scriptTag);
    }
    if (window.attachEvent) {
      window.attachEvent('onload', async_load);
    }
    else {
      window.addEventListener('load', async_load, false);
    }
  })();

...

</script>