C.  AJAX can update interface elements 'on the fly'
Cont…
•Some ways to improve AJAX accessibility:
–1. Inform the user at the top of the form that it requires JavaScript or detect JavaScript automatically and warn the user when it isn’t available.
–2. Inform the user that the page is updated dynamically. Important for screen reader users - it will help them decide when to trigger a re-read of the page.
–3. Make it possible to receive an alert when information was updated.
•e.g. JS Alert boxes are read by the screen reader and are usually displayed together with a sound
–4. Highlight recently updated areas for a short period of time. Helps sighted users understand what just happened.
•e.g. "The Yellow Fade Technique" and the "Fade Anything Technique" (FAT)
•General theme - Design for your users rather than code for them