AT Definition

Here is my latest.

Look at

http://www.csulb.edu/~wed/eo/assistive.html

I also turned in my Accessibility Support section. 

http://www.csulb.edu/~wed/eo/accsup.html

Please someone comment on this. It is very important to ARIA stuff.  It 
ain't easy, but I think I made it a little more understandable.  Those 
parts that I think cannot be correct and simple, I attempted to disentangle.

Wayne