I'm redoing the tooltips on a commercial site and am looking for a good tooltip library to use. Some of the pages use prototype already for other functions, so I need to find something based on prototype that can do the following.
- Dynamic positioning, meaning if the tooltip would fall outside of the window then it is moved to a better position.
- Automatic rounded corners
- Ability to pull content through AJAX calls
The only library I've been able to find is Prototip, which charges for commercial licenses. I doubt my boss would be into $500 for a multi-site license, so I'm wondering if anyone knows of open-source alternatives.