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WAI-ARIA - Accessibility for web applications

Thought you guys may find this an interesting read. Its the Web Accessibility Initiative’s Accessible Rich Internet Applications specification which adds attributes to HTML to allow for widget states, positioning and regions on the page that are going to change. It's being implemented in all the main browsers, although not all of them fully support it yet. Anyway... have a read: http://dev.opera.com/articles/view/introduction-to-wai-aria/