The AJAX Tag Library is a set of JSP tags that simplify the use of Asynchronous JavaScript and XML (AJAX) technology in JavaServer Pages.
AJAX is primarily rooted in JavaScript. However, many server-side developers do not have an extensive knowledge of client-side programming in the browser. It's much easier in some cases for J2EE developers, especially, to simply add a JSP tag to the page to gain the function desired.
AjaxAnywhere is designed to turn any set of existing JSP or JSF components into AJAX-aware components without complex JavaScript coding.
In contrast to other solutions, AjaxAnywhere is not component-oriented. You will not find here yet another AutoComplete component.
Simply separate your web page into multiple zones, and use AjaxAnywhere to refresh only those zones that needs to be updated.