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AW: img alt text, links and titles

From: Jan Eric Hellbusch <hellbusch@web.de>
Date: Wed, 16 Jan 2002 18:16:59 +0100
To: "Jim Ley" <jim@jibbering.com>, <w3c-wai-ig@w3.org>
Message-ID: <NFBBJKECKLPNANIKABHJEEGICKAA.hellbusch@web.de>
Hello Jim and All,

after getting feedback this what I have to offer on the alt text/title
issue:

1) http://www.w3.org/TR/html4/struct/objects.html#h-13.2

"The alt attribute specifies alternate text that is rendered when the image
cannot be displayed (see below for information on how to specify alternate
text). User agents must render alternate text when they cannot support
images,
they cannot support a certain image type or when they are configured not to
display images."

and

2) http://www.w3.org/TR/html4/struct/global.html#title

"Values of the title attribute may be rendered by user agents in a variety
of
ways. For instance, visual browsers frequently display the title as a "tool
tip"
(a short message that appears when the pointing device pauses over an
object).
Audio user agents may speak the title information in a similar context. For
example, setting the attribute on a link allows user agents (visual and
non-visual) to tell users about the nature of the linked resource:"



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-----Ursprüngliche Nachricht-----
Von: w3c-wai-ig-request@w3.org [mailto:w3c-wai-ig-request@w3.org]Im
Auftrag von Jim Ley
Gesendet: Mittwoch, 16. Januar 2002 12:55
An: w3c-wai-ig@w3.org
Betreff: Re: img alt text, links and titles


>"Jan Eric Hellbusch":
>Actually, neither NS6 nor Opera 5 (available on my system) will show the
alt
>text of an image  as a tool tip, which is the correct interpretation of
the
>specs.

Can I have a reference for these specs?  This is clearly not covered in
HTML recommendations, it's a UAAG issue, and they don't mandate how
alternative content is made available to a user, they just say it should
be made available, Tooltip is clearly convenient for many, what
accessibility problem does it cause? (Mozilla and Opera cause me problems
by not doing it, that's fine they have ways of showing it, I have
choice.)

>As we have heard from others on this list, the alt text is to replace
>the image, i.e. when the image can't be shown due to the rendering
software
>or when the image can't be found due to incorrect mark up.

And UAAG says its sensible and desirable to allow users to show
alternative content and content simultaneously (which is obvious, the
more representations of a single thing the easier in general it will be
to understand - or by showing the ALT content I might "get" the image and
then learn for the future what other similar images mean.)

Jim.
Received on Wednesday, 16 January 2002 12:11:55 GMT

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