here is the link to it : spin.js 

here is the code i' am using (i don't stop the spinning to see the result)

1. <script src="../plugin/spin/spin.js" type="text/javascript"></script>
2. <script type="text/javascript">
3. var target = document.getElementById('testers');
4. var spinner = new Spinner();
5. spinner.spin(target);
6. </script>

there are no errors in the Chrome Console review.

please HELP