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Ajax (asynchronous JavaScript and XML) is a group of interrelated web development techniques used for creating interactive web applications or rich Internet applications. With Ajax, web applications can retrieve data from the server asynchronously in the background without interfering with the display and behavior of the existing page.

Some Advantages

• In many cases, the pages on a website consist of much content that is common between them. Using traditional methods, that content would have to be reloaded on every request. However, using Ajax, a web application can request only the content that needs to be updated, thus drastically reducing bandwidth usage and load time.
• The use of asynchronous requests allows the client's Web browser UI to be more interactive and to respond quickly to inputs, and sections of pages can also be reloaded individually. Users may perceive the application to be faster or more responsive, even if the application has not changed on the server side.
• The use of Ajax can reduce connections to the server, since scripts and style sheets only have to be requested once.

All scripts and code examples in our directory are free for download and non-commercial use.

In particular the AJAX Tag Library is a set of JSP tags that simplify the use of Asynchronous JavaScript and XML 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.

This tag library fills that need by not forcing J2EE developers to write the necessary JavaScript to implement an AJAX-capable web form. The tag library provides support for live form updates for the following use cases: autocomplete based on character input to an input field, select box population based on selections made from another field, callout or balloon popups for highlighting content, refreshing form fields, client trigger to allow the server to modify the client and toggling images and form field states on/off.

The implementation is a combination of Java classes and JavaScript source files. The Java code should be OS independent as there are no client side components. However, the Java is dependent on JDK 1.5+ and requires a Servlet container to run at least JSP version 2.0. The JavaScript should run in at least Firefox 2.0+ and Internet Explorer 6.0+. To get started, check out the install and quickstart guides.

April 19 - 21, 2010 Javits Convention Center - New York, NY Make Virtualization Work for Your Business in 2010 and Beyond Virtualization cuts across just about all that you might find in the today's data center: to one degree or another, clients, servers, applications, storage systems, data networks, and security can all now be virtualized. By compressing multiple workloads onto a single physical server, Virtualization enables data centers to save tremendous amounts of money on hardware, power, cooling and floor space. For small and midsized enterprises, Virtualization can also help data centers tap into levels of fault tolerance previously enjoyed only by huge organizations.

June 22-23, 2009 - New York, NY September 22-23, 2009 - San Francisco, CA In these recessionary times when every IT dollar must be made to count, the 15th International SOA World Conference & Expo (June 22-23, 2009, in New York) will be about showing attending delegates how their business or organization can start doing the same, and offering them resources, ideas and examples they can apply immediately.

June 22-23, 2009 - New York, NY September 22-23, 2009 - San Francisco, CA At the 7th International AJAXWorld RIA Conference & Expo in New York City this June, the Conference Theme is "Driving Profitability Through the User Experience" - there will be keynotes, General Sessions, breakout sessions, and industry panels that explore and explain how simple, rich interfaces that don’t get in the way of the user's experience but enhance it are increasingly becoming tied to value creation, profitability and staying-power in the marketplace.

May 18-19, 2009 - Prague, Czech Republic According to Gartner, virtualization will be the highest-impact IT trend changing infrastructure and operations through 2012. Virtualization is rewriting the rules of IT management, deployment, planning and purchasing as organizations transform their IT environment into a dynamic datacenter.

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