Build, manage, and secure AJAX applications 

Here is a practical and comprehensive programming guide to AJAX (Asynchronous JavaScript and XML)--the revolutionary new technique for creating interactive Web applications. You will get thorough coverage of AJAX technologies, the advanced JavaScript necessary to use AJAX properly, and how AJAX works with PHP, ASP.NET, JSP, and Ruby. Core information about network, data, and user interface design in support of AJAX is also included.