W3C home > Mailing lists > Public > w3c-wai-ig@w3.org > July to September 1999

imagemap alt question responses

From: David Poehlman <poehlman@clark.net>
Date: Mon, 16 Aug 1999 08:19:50 -0400
Message-ID: <37B801E6.663A547C@clark.net>
To: WAI Interest Group <w3c-wai-ig@w3.org>
this is the summary posted by the original questioner of answers
received.  Thanks for helping on this.
I didn't se any of our answers though.

Date:    Sun, 15 Aug 1999 19:13:16 -0500
From:    Sallow <sallow@twcny.rr.com>
Subject: SUMMARY: i-map ALT tag

Thanks to all for the help!  TITLE tag was tried and works well with
NS 4.5
and 4.6.


Looks like you resolved your own problem by switching to use of image
slices rather than an imagemap.  However, to answer your question, ALT
on particular regions of an imagemap are very browser-dependent.  They
fine in MSIE 5, but don't work in (some?) versions of Netscape.

In MSIE 5, an ALT attribute on the IMG tag itself becomes the default
for the map.  An ALT attribute on a particular AREA inside the
corresponding MAP is used as the tip for that area.  Just as one would

JQ Johnson                      office: 115F Knight Library
Academic Education Coordinator  email: jqj@darkwing.uoregon.edu
1299 University of Oregon       phone: 1-541-346-1746  -3485 fax
Eugene, OR  97403-1299          http://darkwing.uoregon.edu/~jqj/


The answer may be tied to which browser you are using.  Without going
to confirm this, I recall that ALT tag contents in image maps display
Netscape, but NOT with MS Explorer.

However, I discovered that if you add an ADDITIONAL attribute
TITLE="intended ALT text" everywhere you have an ALT tag, you will
the text on MSIE as well.

See an example on the large imagemap at www.kinlingrover.com home

All the best,

Larry Swain

Date sent:              Fri, 13 Aug 1999 13:00:26 -0500
From:                   Sallow <sallow@twcny.rr.com>
Subject:                QUESTION: image map ALT tags


I went to <URL:http://www.io.com/~god/warhammer/warhammer.htm  > with
on Win95 and got all four Alt tags to show up when the mouse hovered.
use of alt="Sallow's Homepage" and the rest is correct.

They did not show on Netscape 3.01 Gold, but do work with Netscape
Communicator 4.6.

What browser are you using?


  David J. Hark  HARK/INTERNET HELP  N8GMQ  304-876-2607
       P. O. Box 201 Shepherdstown, WV 25443-0201


I checked out your page and found all occurrences of ALT= text
were functioning properly.  I'm using Netscape Communicator 4.61
on a Win95 box.  I'm not really sure why you wouldn't be seeing the
ALT= text in your browser.

I used one of your links to transferring to another one of your pages:
  http://www.io.com/~god/warhammer/gallery/gallery.htm and the
link worked properly.  I did notice on this page that you referred
to some graphics that you apparently intend to put in your empty
table later.

Can you describe the problem you're encountering in a little more
detail.  For example, is it a problem with the "On Mouse Over" display
of the ALT= text or is the problem when the browser doesn't display
the image it also fails to display the text?  Sorry, I've not been
to help yet.

Ed Grain


ALT tags on image maps aren't supported in many browsers but the best
around is using ALT and TITLE attributes, ...ALT="foobar"
to cover as many browsers as possible. You can use JavaScript to give
ToolTips as well, you could try www.javascripts.com or
to find some that might be useful if you were that way inclined.

   Gavin Cope                             Web Administrator
   ICQ: 115974                           http://www.bit.net.au/
   Brisbane Internet Technology     Ph : +61 7 3252 1600
Received on Monday, 16 August 1999 08:31:51 UTC

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