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RE: Server side image maps

From: David Clark <david@davidsaccess.com>
Date: Fri, 1 Dec 2000 11:42:44 -0500
To: <w3c-wai-ig@w3.org>
Message-ID: <NEBBKDCICLDNGPLCEIHLGEMFCHAA.david@davidsaccess.com>
Hey Jim,

I guess I have my head in the sand thinking of old times again. I was
thinking of the old banner exchange programs (before ad servers took over).
But, it looks like ad servers no longer use imagemaps of any kind.

Never mind....

dc

---------------
David M. Clark
16 Harcourt Street, #2I
Boston, MA  02116
617-859-3069 : 401-679-0239 (eFax) : 617-290-3410 (cell)
http://www.davidsaccess.com
david@davidsaccess.com

-----Original Message-----
From: w3c-wai-ig-request@w3.org [mailto:w3c-wai-ig-request@w3.org]On Behalf
Of Jim Thatcher
Sent: Thursday, November 30, 2000 8:05 PM
To: w3c-wai-ig@w3.org
Subject: RE: Server side image maps

Thanks very much David and Kynn.

I summarize your arguments for server side maps: it is historical - it used
to be done that way. Bottom line - no reason.

I don't buy computation or "funny shapes" because any funny shape can be fit
to pixel width by a polygon. But, David, guess I ought to ask what is the
"linkshare program."

Jim
jim@jimthatcher.com
Accessibility Consulting
http://jimthatcher.com
512-306-0931

-----Original Message-----
From: w3c-wai-ig-request@w3.org [mailto:w3c-wai-ig-request@w3.org]On
Behalf Of David Clark
Sent: Thursday, November 30, 2000 6:12 PM
To: jim@jimthatcher.com; w3c-wai-ig@w3.org
Subject: RE: Server side image maps


Hi Jim,

You have a reasonable point, there is no reason to use a serverside imagemap
in the King County example you cite.

Serverside imageamaps are used for one of two reasons:

1. Historical - serverside images were common before browsers supporeted
imagemaps. This has not been the case for quite a while.
2. Dynamic content - when the  resulting link is based on "computations", it
needs to be server based. The common example of this is linkshare programs

Hope this helps.

dc

---------------
David M. Clark
16 Harcourt Street, #2I
Boston, MA  02116
617-859-3069 : 401-679-0239 (eFax) : 617-290-3410 (cell)
http://www.davidsaccess.com
david@davidsaccess.com

-----Original Message-----
From: w3c-wai-ig-request@w3.org [mailto:w3c-wai-ig-request@w3.org]On Behalf
Of Jim Thatcher
Sent: Thursday, November 30, 2000 6:15 PM
To: w3c-wai-ig@w3.org
Subject: Server side image maps

Can anyone explain why a web site developer would choose a server side image
map like the one at http://www.metrokc.gov/ over a client side image map? I
am assuming the developer knows accessibility and the requirement for
equivalent text links. What are the advantages of server side image maps? I
had always thought that it had something to do with unusual regions. But the
client side map at http://support.dell.com (WITHOUT alt text on the areas)
illustrates the fact that you can get as exact as you want with the regions.

Jim
jim@jimthatcher.com
Accessibility Consulting
http://jimthatcher.com
512-306-0931
Received on Friday, 1 December 2000 11:45:00 GMT

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