Jquery simpletip plugin - why doesn't it work here?
You also have to include a jquery CDN. Here is your button working in a fiddle Jquery CDN from here: http://jquery.com/download/ <script src="//code.jquery.com/jquery-1.11.3.min.js"></script> ...
You also have to include a jquery CDN. Here is your button working in a fiddle Jquery CDN from here: http://jquery.com/download/ <script src="//code.jquery.com/jquery-1.11.3.min.js"></script> ...