We use Sajax for adding small Ajax code to sites. After running into a problem and doing some digging, it seems the library hasn't been updated since 2005.
I've appreciated Sajax for being lightweight, easy to use, and easy to install (just include the file in PHP).
So, on the LAMP stack, if you have used Sajax before, what would you upgrade to? Ease of use is key since some semi-programmer web developers use the code too.
I know a lot of people would say jQuery, but is that as simple as Sajax?