We want to revise some forms to use the Asynchronous JavaScript + XML (AJAX) approach with background data submissions and page updates. Are there options for an AJAX development kit to simplify the process?

There are several AJAX toolkits, from commercial products (Backbase) to open source offerings such as the Simple Ajax Tool Kit (www.modernmethod.com). More information is available at www.ajaxian.com.

One free component you will want to utilize is prototype.js. Prototype is a strong, stable collection of Document Object Model handling and convenience methods for working with XMLHTTPRequest and remote scripting that simplifies AJAX programming. The Rico kit (www.openrico.org) is an example of a higher-level development tool that builds on prototype.js. Several special-effects components can enhance your AJAX development experience. The site www.asp.net has links to AJAX controls for use in ASP.NET applications.

Tibco also provides an AJAX development toolkit through its General Interface Developer program. Finding a kit to meet your needs may take a little digging, simply because there are so many choices. Also keep an eye on the Macromedia (Adobe) Flex platform. The Flex Builder 2 alpha download seems aimed at making it easier to build AJAX-style Rich Internet Applications in Flash.