Using Time Out Scripts:
(p) When a timed response is required, the user shall be alerted and given
sufficient time to indicate more time is required.
Web pages can be designed with scripts so that the web page disappears or "expires" if
a response is not received within a specified amount of time. Sometimes,
this technique is used for security reasons or to reduce the demands on the
computer serving the web pages. Someone's disability can have a direct impact
on the speed with which he or she can read, move around, or fill in a web
form. For instance, someone with extremely low vision may be a slower-than-average
reader. A page may "time out" before he is able to finish reading
it. Many forms, when they "time out" automatically, also delete
whatever data has been entered. The result is that someone with a disability
who is slow to enter data cannot complete the form. For this reason, when
a timed response is required, the user shall be alerted via a prompt and
given sufficient time to indicate whether additional time is needed.
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