> I ran into this myself a couple of times. The jQuery framework leaves > much to be desired in this arena and there is considerable lack of > proper OO inheritance from what I am aware of (I have only been on > jQuery for 2-3 weeks). I recently tried to extend the ui.spinner
JavaScript is no different than any other language - you can't override things that are private. jQuery proper actually exposes nearly everything for you to override and also has many explicit extension points (fn, easing, speed, etc). Plugins often don't offer the same extensibility, but that has nothing to do with jQuery's design.
