Re: [WSG] accessibility: images as navigation

2007-01-24 Thread Tim
If you put the link text inside the CSS background image I think that 
solves the problem?


 Have a look at this page and enlarge the text. It works well for two 
enlargements up to 150%.


http://www.hereticpress.com/index.html


On 24/01/2007, at 6:21 PM, cara williams wrote:

If the title attribute is ignored by screen readers, still, it would 
read the alt attribute of the image which would include a meaningful 
description of where the link is taking them to. Is this an annoying 
hurdle for screen reader users - having an alt attribute to go by 
rather than a plain text link description?


Also, you're right about using CSS to display the imagery, though that 
wouldn't solve the last scenario of the user who enlarges their text 
via their browser settings?


Cheers,

Cara.

On 1/24/07, Tim [EMAIL PROTECTED]  wrote:

attribute, A research paper by Vision Australia ex staff member last
year.
Why not put the image in the CSS background-image:
url(Pics/Thispic.jpg);
You can add onfocus or hover events to change the pic and the page is
still clean for text readers.

tim
On 24/01/2007, at 5:41 PM, cara williams wrote:

 Hello!

 Here's an issue that's been bugging me for a while and I'd really 
love

 some clarification.

 There's been a bit of discussion at my work about where we use an
 image as a link that we must also provide a text link beneath the
 image as an alternative. The text alternative is usually mirroring
 what is included in the graphically designed element. So for sighted
 people it's a bit odd and sometimes confusing reading both. We never
 use images for main navigation, but occasionally like to add a
 graphically styled element for something we're promoting on our home
 page.

 I believe the justification is broadly for accessibility reasons,
 though specifically in which situation is this helping? My
 understanding is that:
   •   screen readers have no problems reading alt 
attributes (title

 attributes in an a are a different story though - I've heard mixed
 reviews - if someone could clarify?)
   •   a text only browser will usually read both title and 
alt

 attributes (please correct me if I'm wrong on this!)
   •   a screen magnifier will enlarge the image as well as 
the text
   •   in the case of a user enlarging the text through 
their browser
 settings, the image won't be enlarged and the text alternative will 
-

 the only real scenario that I can see where this technique may
 possibly be of use.
 So is this really best practice?

 Cheers,

 Cara.

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Re: [WSG] accessibility: images as navigation

2007-01-24 Thread David Dorward
On Wed, Jan 24, 2007 at 04:41:20PM +1000, cara williams wrote:

  * a text only browser will usually read both title and alt
attributes (please correct me if I'm wrong on this!)

I  don't think  I've ever  seen a  title attribute  exposed by  a text
browser.

-- 
David Dorward  http://dorward.me.uk



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Re: [WSG] accessibility: images as navigation

2007-01-24 Thread Joseph R. B. Taylor

A simple approach to this dilemma (really simple in fact)

a href=my_link title=my_link_descriptionimg src=my_image 
alt=my_link_description //a


If images are 'on' its works as you'd expect.  If not, the alt text is 
shown as a link.  Hurray!


--

Joseph R. B. Taylor
*Sites by Joe, LLC*
/Custom Web Design  Development/
http://sitesbyjoe.com
(609) 335-3076
[EMAIL PROTECTED] mailto:[EMAIL PROTECTED]



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Re: [WSG] accessibility: images as navigation

2007-01-24 Thread Thierry Koblentz
Joseph R. B. Taylor wrote:
 A simple approach to this dilemma (really simple in fact)

 a href=my_link title=my_link_descriptionimg src=my_image
 alt=my_link_description //a

This is a JS approach that keeps the markup *clean* (no IMG elements, pure
text).
http://tjkdesign.com/articles/TJK_tipMenu_demo.asp

Using IMGs in the markup and keeping the CSS styles works as well and makes
it JS free.

---
Regards,
Thierry | www.TJKDesign.com



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Re: [WSG] accessibility: images as navigation

2007-01-24 Thread Joseph R. B. Taylor
There's also the empty span/span after the text in the link 
approach.  You can use CSS to make the span show your image over the 
text real easy.  Do a google search on the technique and you'll find 
plenty of examples.  I don't remember who came up with it originally, 
but besides the extra empty element, its squeaky clean.


Thierry Koblentz wrote:


Joseph R. B. Taylor wrote:
 


A simple approach to this dilemma (really simple in fact)

a href=my_link title=my_link_descriptionimg src=my_image
alt=my_link_description //a
   



This is a JS approach that keeps the markup *clean* (no IMG elements, pure
text).
http://tjkdesign.com/articles/TJK_tipMenu_demo.asp

Using IMGs in the markup and keeping the CSS styles works as well and makes
it JS free.

---
Regards,
Thierry | www.TJKDesign.com



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--

Joseph R. B. Taylor
*Sites by Joe, LLC*
/Custom Web Design  Development/
http://sitesbyjoe.com
(609) 335-3076
[EMAIL PROTECTED] mailto:[EMAIL PROTECTED]



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Re: [WSG] accessibility: images as navigation

2007-01-24 Thread Thierry Koblentz
Joseph R. B. Taylor wrote:
 There's also the empty span/span after the text in the link
 approach.  You can use CSS to make the span show your image over the
 text real easy.  Do a google search on the technique and you'll find
 plenty of examples.  I don't remember who came up with it originally,
 but besides the extra empty element, its squeaky clean.

IMHO, an IMG element is better than a SPAN as it comes with the following
advantages:
- it's semantic
- it can be printed
- it comes with an ALT attribute
and it can scale: http://tjkdesign.com/articles/tip_5.asp

---
Regards,
Thierry | www.TJKDesign.com



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Re: [WSG] accessibility: images as navigation

2007-01-23 Thread cara williams

If the title attribute is ignored by screen readers, still, it would read
the alt attribute of the image which would include a meaningful description
of where the link is taking them to. Is this an annoying hurdle for screen
reader users - having an alt attribute to go by rather than a plain text
link description?

Also, you're right about using CSS to display the imagery, though that
wouldn't solve the last scenario of the user who enlarges their text via
their browser settings?

Cheers,

Cara.

On 1/24/07, Tim [EMAIL PROTECTED] wrote:


I thought from memory that most text readers ignored the title
attribute, A research paper by Vision Australia ex staff member last
year.
Why not put the image in the CSS background-image:
url(Pics/Thispic.jpg);
You can add onfocus or hover events to change the pic and the page is
still clean for text readers.

tim
On 24/01/2007, at 5:41 PM, cara williams wrote:

 Hello!

 Here's an issue that's been bugging me for a while and I'd really love
 some clarification.

 There's been a bit of discussion at my work about where we use an
 image as a link that we must also provide a text link beneath the
 image as an alternative. The text alternative is usually mirroring
 what is included in the graphically designed element. So for sighted
 people it's a bit odd and sometimes confusing reading both. We never
 use images for main navigation, but occasionally like to add a
 graphically styled element for something we're promoting on our home
 page.

 I believe the justification is broadly for accessibility reasons,
 though specifically in which situation is this helping? My
 understanding is that:
   •   screen readers have no problems reading alt attributes
(title
 attributes in an a are a different story though - I've heard mixed
 reviews - if someone could clarify?)
   •   a text only browser will usually read both title and alt
 attributes (please correct me if I'm wrong on this!)
   •   a screen magnifier will enlarge the image as well as the
text
   •   in the case of a user enlarging the text through their
browser
 settings, the image won't be enlarged and the text alternative will -
 the only real scenario that I can see where this technique may
 possibly be of use.
 So is this really best practice?

 Cheers,

 Cara.

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