Re: Alternate proposal for ISSUE-30 longdesc

Maciej Stachowiak wrote:
> Will current assistive technologies correctly handle a longdesc value 
> that is just a reference to a fragment on the existing page? Is it 
> actually used that way in content? (I don't recall any examples of this 
> being cited in any of the surveys done.)

Sometimes but not frequently, according to some subset of public web 
pages. The ~425K pages from 
<http://philip.html5.org/data/dotbot-20090424.txt> have longdescs 
indicated in <http://philip.html5.org/data/longdesc-raw.txt>:

8 pages have longdesc="#".

http://advantageaustria.org/mc/zentral/focus/kreativwirtschaft/kreativwirtschaft.en.jsp 
and some other pages from the same site have:

   <a name="top"></a>
   <div ...><div ...>
     <a href="..."><img 
src="/zentral/images/image_header/logo_austriantrade.gif" width="212" 
height="32" title="advantageaustria.org - Home &copy; ADVANTAGE AUSTRIA" 
alt="advantageaustria.org - Home &copy; ADVANTAGE AUSTRIA" 
longdesc="#top" /></a>

(no content between the top and the img).


http://mit.edu/7.01x/7.013/study.html has

   <a href="#top"><img src="comm_images/b_backtotop.gif" alt="back to 
top" width="111" height="21" border="0" longdesc="#top" /></a>

(at the bottom of the page, pointing to the top).


http://www.konyhatizezercikk.hu/ has

   <a href="#oldalteto"><img src="../images/oldalteto.jpg" alt="Vissza 
az oldal tetejére" width="30" height="30" border="0" 
longdesc="#oldalteto" /></a>

and oldalteto is never defined anywhere.


http://www.everythingdsl.com/time-warner/wisconsin/madison/ has

   <img src="madison-time-warner-promo.png" alt="Madison Time-warner 
promo" longdesc="#PromoDesc" /><div id="PromoDesc">Get Madison 
Time-warner offers in a matter of seconds</div>

-- 
Philip Taylor
pjt47@cam.ac.uk

Received on Monday, 22 February 2010 15:01:06 UTC