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From: Jon Gunderson <jongund@staff.uiuc.edu>
Date: Wed, 03 Jun 1998 08:25:00 -0500
Message-Id: <>
To: w3c-wai-gl@w3.org
The "rel=dlink" is intended to used to provide a "hide" and "show" option
in the UA for people who may hard code D-Links during the transitory phase
to longdesc.  There is also a problem in OBJECT, since it does not have a
LONGDESC attribute.  

At 11:57 AM 6/3/1998 METDST, you wrote:
>There is still the problem that the UA cannot tell 
>to which image the link refers to. Assume you have two 
>D-links in your document and five images. What does the UA do 
>with that? How does it know to which images the links refer to?
>The only usage that I can see is to have an option for the user to set
>"hide D-links" or "show D-links", but then it can be done with longdesc.
>The UA cannot decide on its own image by image whether to get rid of 
>one of them (longdesc or D-link) since it wouldn't know which D-link is 
>related to which image.
>Authors should not use both longdesc and D-link simultaneosly.
>Nir Dagan
>> > longdesc is the modern D-link, look no further. 
>> > Its only disadvantage is that it is not supported yet, 
>> > but so is rel="description".
>> The support for rel (or class) and longdesc go together, it's not
>> about replacing one with the other.
>> rel=description, or class=description, are meant to provide UA a way
>> to formally identify a dlink as such, so that when both a longdesc and 
>> a dlink A are provided by the author, the UA can get rid of one of
>> them.
Jon Gunderson, Ph.D., ATP
Coordinator of Assistive Communication and Information Technology
Division of Rehabilitation - Education Services
University of Illinois at Urbana/Champaign
1207 S. Oak Street
Champaign, IL 61820

Voice: 217-244-5870
Fax: 217-333-0248
E-mail: jongund@uiuc.edu
WWW:	http://www.staff.uiuc.edu/~jongund
Received on Wednesday, 3 June 1998 09:28:16 UTC

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