PUBLIC MARKS with tags ajax & "logiciel libre"

Orbeon Forms is an open source forms solution that handles the complexity of forms typical of the enterprise or government. It is brought to standard web browsers (including Internet Explorer, Firefox, Safari and Opera) thanks to Ajax technology, with no need for client-side software or plugins. Orbeon Forms allows you to build fully interactive forms with features that include as-you-type validation, optional and repeated sections, always up-to-date error summaries, PDF output, full internationalization, and controls like auto-completion, tabs, dialogs, trees and menus.

Telosys : Open Source AJAX framework to build Web 2.0 applications