Earlier, I suggested to use Code Downloading in order to reduce the size of AJAX application. I left the term undescribed, but I will change this now: As JavaScript is an interpreted language, it is quite easy to load additional code, even after the application has "started". This means that only code absolutely necessary to [...]

As the prototype.js library lacks documentation and I recommend to use the down cut version for AJAX, I thought it might be useful to document how to use the AJAX related functions. A "normal" AJAX callback When you just want to do a post-back to the server (for example to store some data the user [...]

Customized prototype.js for AJAX, small in size.

Many AJAX applications overuse the new technology. Try using it at a reasonable degree.

The most used AJAX libraries take up quite considerable amounts of download volumen. Change that.