It's not really that simple i'm afraid. The potential for AJAX to cause accessibility problems is largely based around the fact that it can silently update data in the browser client. So for example if you use AJAX to insert markup and CSS into a page to indicate errors on a form, that can be quite effective for many users, but you need to ensure that this is indicated to users who use screenreaders for example. The screenreader needs to be aware that the page has changed in order to re-read content it may already have scanned.
It's quite possible in most cases to use AJAX calls and still produce accessible solutions, but they have to be taken on a case by case basis. You can't talk about "controls" either, as it's not a technical problem with any given control. Also, AJAX isn't really a set of controls anyway, strictly speaking it's any use of the XHMLHTTPRequest object, which could just be a few lines of javascript. The key questions would be : a.) What happens if javascript is disabled or not available to the browser, can the user still complete the task? b.) If javascript is available, how can you ensure that the user is aware of any changes caused by the use of AJAX? Regards Lee http://leemcivor.co.uk/ ----- Original Message ---- From: Sudhindra Venkatesha Murthy <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Sent: Thursday, 4 September, 2008 11:08:37 Subject: [IxDA Discuss] Disability Discrimination Act and AJAX Hi All,Can anyone shed some light on whether using AJAX makes a website non compliant with the Disability Discrimination Act? I know there would be violations using some controls of Ajax and not in others, but is there some study/information on this somewhere (about which controls are non compliant etc)? Would appreciate any help on this topic.. Sudhindra V. ________________________________________________________________ Welcome to the Interaction Design Association (IxDA)! To post to this list ....... [EMAIL PROTECTED] Unsubscribe ................ http://www.ixda.org/unsubscribe List Guidelines ............ http://www.ixda.org/guidelines List Help .................. http://www.ixda.org/help ________________________________________________________________ Welcome to the Interaction Design Association (IxDA)! To post to this list ....... [EMAIL PROTECTED] Unsubscribe ................ http://www.ixda.org/unsubscribe List Guidelines ............ http://www.ixda.org/guidelines List Help .................. http://www.ixda.org/help
