Most screen readers sit on top of whatever browser you are using. Professional screen readers can interact with JavaScript and Flash if these are enabled in the browser, although the level of support varies. In particular Flash content is often totally or partially inaccessible, although this is often avoidable with careful design.
Screen readers do not read Flash content that is embedded using unobtrusive techniques such as SWFObject. I expect they would read the content that is supposed to be replaced, but I have never encountered an implementation where there was any alternate content. Does anyone have an example I can check? Steve -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Christian Snodgrass Sent: 04 February 2008 04:20 To: wsg@webstandardsgroup.org Subject: Re: [WSG] long description and its implementation Maybe I'm confused. Do they usually have Flash installed? I thought that screen readers would default to whatever is suppose to be replaced with the Flash when using SWFObject. Maybe it defaults because the Flash isn't enabled... Though, I guess that could be wrong as well. Steve Green wrote: > Such as? > > JAWS (which has something like 50% market share) has a high level of > JavaScript support and I believe that the other professional screen > readers (WindowEyes and HAL/SuperNova) also do. Free and cheap screen > readers generally don't have JavaScript support. > > In our experience screen reader users do not turn off JavaScript. In > fact they tend to use pretty much all software as it comes out of the > box without any customisation. The one exception is Windows itself, > where it is beneficial to enable Classic mode and make a few other > adjustments, especially in Vista. > > Steve > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Christian Snodgrass > Sent: 04 February 2008 03:06 > To: wsg@webstandardsgroup.org > Subject: Re: [WSG] long description and its implementation > > Mostly empirical evidence, though I've read it in many reliable sources. > > Patrick H. Lauke wrote: > >> Christian Snodgrass wrote: >> >>> (Most screen readers don't have Javascript enabled, so this is a >>> valid method). >>> >> Just wondering if this is based on stats or empirical evidence? >> >> P >> > > > -- Christian Snodgrass Azure Ronin Web Design http://www.arwebdesign.net/ <http://www.arwebdesign.net> Phone: 859.816.7955 ******************************************************************* List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm Help: [EMAIL PROTECTED] ******************************************************************* ******************************************************************* List Guidelines: http://webstandardsgroup.org/mail/guidelines.cfm Unsubscribe: http://webstandardsgroup.org/join/unsubscribe.cfm Help: [EMAIL PROTECTED] *******************************************************************
