by Vivienne Trulock
It is unethical to provide a lesser service to those who are disabled, therefore if using dynamic content, the alternative content should also be updated.
When using <FRAME>, always load an entire page into a frame, not just an image, so that the frame title is correct.
when using <object>, add in a text alternative, in case the object cannot be executed.
When using <applet>, add in a text alternative, in case the applet cannot be executed.
When using <script>, add in a text alternative, in case the script cannot be executed. I am using a javascript on this page fix the navigation post-it, so I also have a <noscript> tag explaining what the script does.
Check each dynamic element for alternative content. If any dynamic elements do not have alternative content, the page fails the check.