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Re: Seeking guidance...

From: Charles McCathieNevile <charles@w3.org>
Date: Wed, 5 Apr 2000 15:27:04 -0400 (EDT)
To: Crystal Allen <crystal@cpd2.usu.edu>
cc: Melinda Morris-Black <melinda@ink.org>, Accessibility Listserve <w3c-wai-ig@w3.org>
Message-ID: <Pine.LNX.4.20.0004051522080.7760-100000@tux.w3.org>
Making HTML 4 mouseover effects accessible to keyboard users is pretty
trivial - add an onfocus/onblur to each element that matches the
onmouseover/onmouseout.

Making the effects accessible is more complex. It is still important not to
rely on the effects of scripts for providing people with important
functionality, but there are a couple of thigs you can do. THe goal would be
to ensure that the alternative content provided for an image was updated at
the same time as the image was changed by a mouseover. There are other uses
where there is only "accessible" content being affected in the first place,
and in that case the important thing is that the user know what is going to
happen, rather than beng surprised by the way a page works benig changed
seemingly arbitrarily. Although many blind users do not use a mouse, most
computers have them , and particularly in the case of touch-pad mice such as
are ommon on laptops, the user may not know where the mouse is. (Or they may
have been using mousekeys, and know precisely where it is...)

Sorry that this is only a partial answer for the moment.

regards

Charles McCN

On Wed, 5 Apr 2000, Crystal Allen wrote:

  Is there a way to make mouseovers accessible?  If anyone could enlighten me
  with a technique to do this it would be much appreciated.
  
  Crystal Allen
  
  
  ----- Original Message -----
  From: "Melinda Morris-Black" <melinda@ink.org>
  To: "Accessibility Listserve" <w3c-wai-ig@w3.org>
  Sent: Wednesday, April 05, 2000 9:13 AM
  Subject: Seeking guidance...
  
  
  > The issues surrounding inclusion of Javascript and accessibility are a
  > little confusing. I'm looking to the list for clarification. What
  > types/elements of scripts seem to be at issue? I know mouseovers are
  > accessible if tagged correctly. However, I've heard negative feedback
  > related to using Javascript forms. Any info on this subject is greatly
  > appreciated.
  >
  > I've included a specific example of a script I'm checking for
  > accessibility. It generates a rotating list of links on the home page.
  >
  > http://www.state.ct.us/
  >
  > Any feedback related to the accessibility is welcome.
  >
  > --
  > Regards,
  >
  > Melinda Morris-Black
  > melinda@ink.org
  >
  >
  

--
Charles McCathieNevile    mailto:charles@w3.org    phone: +61 (0) 409 134 136
W3C Web Accessibility Initiative                      http://www.w3.org/WAI
Location: I-cubed, 110 Victoria Street, Carlton VIC 3053
Postal: GPO Box 2476V, Melbourne 3001,  Australia 
Received on Wednesday, 5 April 2000 15:27:10 GMT

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