Please don't take it personally, but I would never use that and neither should anyone else. First of all, building a 'notification system' is incredibly easy, it's just javascript popups. Reading through your code and adapting it to my own application would be a waste of time. Pick any decent js framework and you can do this within fractions of an hour.
Secondly - don't do popup notifications ever. They are the antithesis of user intent. Nobody ever 'wants' to see a popup.