'

[Irl-dean] Ajax accessibility

Tim Culhane tim.culhane at criticalpath.net
Wed Sep 27 10:46:02 IST 2006


Hi,
 
Yes,  any advice on   creating  accessible sites using ajax  also  welcome.
 
Cheers,
 
Tim
 

-----Original Message-----
From: irl-dean-admin at list.eeng.dcu.ie
[mailto:irl-dean-admin at list.eeng.dcu.ie] On Behalf Of Piero Tintori
Sent: 27 September 2006 10:39
To: irl-dean at list.eeng.dcu.ie
Subject: Re: [Irl-dean] Creating accessible javascript


Hi,
Following on from that, I was just wondering if anyone has a view on Ajax
and Accessibility? 

Regards,

Piero


drice at nda.ie wrote: 


Tim, 

in my experience there is bad and not-so-bad Javascript.  The bad Javascript
is used overtly for things like menus and cannot be read by screen readers
as in the example you gave.  The not-so-bad Javascript is usually used in
conjunction with HTML elements for example for submit buttons on forms.  It
can be read by screen readers but if the user's browser does not support or
has Javascript turned off you are in trouble.  In many of these cases
Javascript is being used in the place of standard form functionality for
some strange reason.   

Using Javascript wisely is the trick.  We provide further advice on this in
our draft guidelines at : 
http://www.nda.bunnyfoot.co.uk/developers/dev_design_basics_tech/design_tech
2.3.html 

The following is an example of a page that we developed for the Oasis
website that uses Javascript in a form in an accessible way:
http://www.oasis.gov.ie/service_finder/ 
The form provides a query interface to a database of public service
locations (everything from schools to garda stations).  The three form
fields are 'category', 'county' and 'town'.  the second and third drop-down
menus use Javascript - once a county is selected the third menu is populated
with towns in that county.  The nice thing about this implementation is that
it works well with screen readers but also when Javascript is disabled.
When Javascript is disabled the form still works - you just don't get the
'town' drop-down menu.  On submit the server knows to provide the list of
towns for that county to the user- hence adding an extra step in the
process.  Ultimately the user goes through one more step if Javascipt is not
enabled but still get the exact same info.   

Hope this helps, 
Dónal Rice 



"Tim Culhane"  <mailto:tim.culhane at criticalpath.net>
<tim.culhane at criticalpath.net> 
Sent by: irl-dean-admin at list.eeng.dcu.ie 


27/09/2006 08:39 


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Subject
[Irl-dean] Creating accessible javascript	


	
	




Hi guys,

My company is currently developing  web based applications which rely
heavily on javascript.

Unfortunately  at present  the javascript does not seem very accessible   to
me.

For example,     menus  and forms created in javascript  are not visible to
Jaws when I view the web pages.

Can anybody suggest resources which describe how accessible javascript can
be developed in such a way that it  is equally usable   by  disabled and
non-disabled people?

I found a good resource at the below url, but was wondering if people on the
list had other  suggestions?

http://www.webaim.org/techniques/javascript/ 

Thanks,

Tim


-------------------------
Tim Culhane,
Critical Path Ireland,
42-47 Lower Mount Street,
Dublin 2.
Direct line: 353-1-2415107
phone: 353-1-2415000

Tim.culhane at criticalpath.net
http://www.criticalpath.net

Critical Path
a global leader in digital communications
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