CBL Partial Updater
CBL Partial Updater is an AJAX library for PHP. Unlike other libraries, all operations are controlled at the server side. Using the library, it is very easy to add AJAX features to existing PHP applications. Just add a few lines to your PHP and HTML, and your web application turns into an AJAX app. In 2005/11/04 release, fixed a bug in HTML attribute quoting. In 2005/09/22 release, added support for spinners (loading indicators).