- From: Jon Dodd <jon@bunnyfoot.com>
- Date: Fri, 4 Nov 2005 17:24:08 -0000
- To: "'Colin Lieberman'" <clieberman@dralegal.org>, <w3c-wai-ig@w3.org>
- Message-ID: <E1EY5In-0005CB-No@lisa.w3.org>
Thanks for sources so far on JavaScript usage percentages, namely counter.com (thanks Alistair) and w3schools.com (thanks Kieren). Thanks also to Colin for his reminder about the whole JavaScript issue. The reason I am asking for stats is to make the case for a significant redevelopment of an important public site that does rely solely on JavaScript functionality. The person responsible for the site needs as much ammunition as possible to convince those that hold the purse strings - very often these people speak stats, hence my enquiry. By the way there seems to be a consensus of about 10% do not have JavaScript (available or turned on) - I must admit that seems high to me but being a significant proportion it should do the trick in terms of persuasion! Thanks Jon _____ From: w3c-wai-ig-request@w3.org [mailto:w3c-wai-ig-request@w3.org] On Behalf Of Colin Lieberman Sent: 04 November 2005 17:06 To: w3c-wai-ig@w3.org Subject: sorry! RE: Stats about JavaScript availability In the second paragraph in my last email, I mean "you shouldN'T rely on scripting" _____ From: w3c-wai-ig-request@w3.org [mailto:w3c-wai-ig-request@w3.org] On Behalf Of Colin Lieberman Sent: Friday, November 04, 2005 9:01 AM To: w3c-wai-ig@w3.org Subject: RE: Stats about JavaScript availability Jon- The deal with JavaScript is that while statistically, "everyone" uses it, there are major accessibility issues for the *statistically* insignificant percent of people who don't. This is an issue with good design more than just accessibility- JavaScript should be used to *add* functionality, not to be primarily responsible for it. A site should always be scalable in terms of usability- you should be able to use the Lynx browser and access every part of your site. Maybe you'll have to tab through links for navigation, but the point is that those links should be there, you should rely on scripting. For a good example of bad JavaScript, check out Travelocity.com. Users of screen reader can not book air travel on this site because of it's reliance on scripting for date selection. A good rule of thumb: if you can do it with scripting, there should also be a way to do it without scripting. Colin Lieberman IT Manager Disability Rights Advocates 449 15th Street, Suite 303 Oakland California 94612 _____ From: w3c-wai-ig-request@w3.org [mailto:w3c-wai-ig-request@w3.org] On Behalf Of Jon Dodd Sent: Friday, November 04, 2005 5:20 AM To: w3c-wai-ig@w3.org Subject: Stats about JavaScript availability Hi All, Does anyone know a source of reliable statistics concerning use of JavaScript (relates to several WCAG 1.0 checkpoints of course). My perception is that everyone now uses it but have heard that up to about 10% of people are browsing without it for several reasons: * banned from a corporate environment because of security issues * using alternative devices which do not support it (not necessarily adaptive technologies) Anyone got any references or info on this. Many thanks Jon
Received on Friday, 4 November 2005 17:24:39 UTC