W3C home > Mailing lists > Public > w3c-wai-ig@w3.org > January to March 2002

Re: Long desc techniques - what is the url pointing to?

From: Jim Ley <jim@jibbering.com>
Date: Wed, 30 Jan 2002 12:45:47 -0000
Message-ID: <02c201c1a98c$1156c7a0$ca969dc3@emedia.co.uk>
To: "WAI Mailing list" <w3c-wai-ig@w3.org>
"Charles McCathieNevile"

> I would agree that the longdesc page should be accessible, and should
contain
> a repeat of the image being described - after all, that isn't going to
make
> any difference to people who can't see it, but will help people who
are, for
> example, trying to get a clearer understanding of what is supposed to
be
> conveyed (someone with very ow vision, who mostly sees a blur, or
someone who
> simply doesn't understand what is in the image).

I assume that the image on the longdesc page shouldn't have a longdesc
attribute...

> Using something like an XSLT to automatically include the longdesc in
> addition to or in place of an image is an intersting idea for a small
tool or
> for a proxy-based tool.

In Internet Explorer the following "bookmarklet" does this (replaces it
with an IFRAME containing the longdesc.):

javascript:im=document.images;for (i=0;i<im.length;i++) if
(im[i].longDesc!='' && im[i].longDesc!='undefined')
im[i].outerHTML="<iframe src='"+im[i].longDesc+"'
height='"+im[i].height+"' width='"+im[i].width+"'>";void 0

(all one line of course - wrapped in email.)

And for Mozilla and IE this bookmarklet adds the IFRAME of the content.
javascript:im=document.images;for (i=0;i<im.length;i++) if
(im[i].longDesc!='' && im[i].longDesc!='undefined')
im[i].parentNode.innerHTML+="<iframe src='"+im[i].longDesc+"'
height='"+im[i].height+"' width='"+im[i].width+"'>"</script>

Jim.
Received on Wednesday, 30 January 2002 07:47:44 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Tuesday, 19 July 2011 18:14:00 GMT