Archive for the tag “JavaScript”
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Accessibility Day in Vienna
Last week I talked at the Vienna Accessibility Day (“A-Tag”) about the emerging W3C standard for Accessible Rich Internet Applications (ARIA). I half expected a crowd of suits as the event was co-organized by the Austrian Ministry of Health, Family and Youth, instead there were many young faces and a fair percentage of women. […]
Accessible Drop-Down Menus
A few days ago a co-worker asked if DHTML drop-down menus pose a problem with accessibility. Since the Web Content Accessibility Guidelines 1.0 (WCAG) declared all JavaScript evil in 1999, assistive technologies (AT) have made significant progress. So we cannot condemn pull-down menus altogether, but there are various reasons to keep an eye on them buggers. […]
Crowdsourcing YouTube Video Captioning
When Chris Heilmann had the splendid idea to add captioning to YouTube videos with Google’s JavaScript API, I asked myself if there wasn’t a better way. There is, but to my surprise neither YouTube nor Yahoo! Video take advantage of that capability. […]
Foreground Sprites
Most rollovers have become obsolete because they can be performed on background images with CSS sprites. However, there are those rare cases when there is just an icon without text, like a “play” or “pause” button. This article discusses how to apply CSS sprites for foreground images. […]
Website Performance Tweaks, Part Two
Nate Koechley presented the research results of the Yahoo! Exceptional Performance Team two weeks ago in London. The traditional focus of performance optimization has been on the backend, i.e. system efficiency. But comparing a number of high profile websites, the Yahoo! team found that frontend performance is responsible for 80-98% of the perceived response time. Therefore doubling the frontend performance gains more than doubling the backend performance. […]
My @media 2006 Day Two
Day two of the @media conference included talks about microformats, Yahoo!’s new technical strategies, browser memory leaks and performance tweaks, some information about accessibility, the mobile web, and meeting Molly Holzschlag. […]
My @media 2006 Day One
@media is a web conference in London with a focus on web standards and accessibility, and impossible to google. I missed last year’s conference, thus I was looking forward to finally meet all the people whose articles, web publications and more recently blogs provided my literature and inspiration for the past seven years or so. […]
