I know you’re already on your way in this direction, however, in the future you might want to consider a CSS slider. Pretty easy to work with. The attached works fine with the wonky type of responsive programming this program outputs, however, I did not alter the JS for “seamless play” so if you want tot use it you’ll have to target the parents – just don’t use seamless. I posted this a while back and updated it with the newest minimized Jquery.
Just another option, there are numerous. Math’s suggestion is a good way to go as well.