All content images used in this site include descriptive ALT attributes.
Purely decorative graphics include null ALT attributes.
Complex images include LONGDESC attributes or inline descriptions to
explain the significance of each image to non-visual readers.
This site uses cascading style sheets for visual layout.
This site uses only relative font sizes, compatible with the user-specified “text size” option in visual browsers.
If your browser or browsing device does not support stylesheets at all, the content of each page is still readable.
Effort has been taken to maintain high background-foreground contrast at all times.
This site makes use of scripting for visual effects. However, all content remains fully accessible if
scripting is unavailable.
All pages use structured semantic mark-up. If you find any accessibility problems with our site, please contact us and we will do our best to fix them.