Cont…
–2. Do not break what the user is focusing
on:
•Don't pull the user away from their current
interaction just because AJAX has the capability
•Users will be confused if their focus is
stolen before they are finished their task
•Consider usability first
before technical capacity to make things quicker
•Sometimes a "go" button is still
better than an automatic action and you can still do it in AJAX
without page refreshes
•On to DHTML and JS
accessibility …