In my opinion WWW will sooner or later come to full-blown AJAX web-sites, so that we wouldn't have page reloads every time you click somewhere.

Now I want you to ask this.

What tools and frameworks can one use to make a Java Web-application running on Tomcat

have AJAX functionality like "in-place, with no page reloading" table sorting by

clicking on its column header, multi-tabs that enable opening at once the new screen to the user without reloading a page, saving data in the database without reloading a page, and other similar things that we do not usually see on web pages.

That's all should probably be based on AJAX.

But how to integrate this AJAX functionality with existing java web-frameworks, let's say Spring MVC?

Or maybe there are other frameworks that better suit such needs but that can be integrated with core Spring?