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Standards compliance

All pages on this site comply with priority 1 guidelines of the W3C Web Content Accessibility Guidelines. More information about the guidelines is available on the W3C's Web Accessibility Initiative page.

All pages validate as XHTML 1.0 Transitional. They use structured semantic markup.

All tables have properly scoped header cells to allow screen readers to render them intelligently. Where required, tables also have a caption and a summary.

Access keys

Most browsers support jumping to specific links by typing keys defined on the web site. The following access keys are available throughout the site:

Access key Target
1 Home page
2 Skip to content
3 Site map
4 Quick search
9 Feedback
0 Accessibility (this page)


Whenever possible, links are written to make sense out of context. Where appropriate, links have title attributes which describe the link in greater detail.

There are no javascript pseudo-links. All links can be followed in any browser, even if scripting is turned off. There are no links that open new windows without warning.

Visual design

This site uses cascading style sheets for visual layout. If your browser or browsing device does not support stylesheets at all, the content of each page is still readable.

More Help With Accessibility

This statement was adapted from Mark Pilgrim's Dive Into Mark. Mark also wrote Dive Into Accessibility, a free resource explaining all the issues dealt with on this page.

Validate this page Valid CSS! Level A conformance icon, W3C-WAI Web Content Accessibility Guidelines 1.0