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  • Accessibility
  • Site Map
  • To skip to the site map page press Alt and 2 then Enter
  • To skip to page main content press Alt and 1 then Enter
A Potential Diamond


This site has been designed to be as accessible as possible for most visitors. We hope you find this to be the case.

Access Keys

An access key is an assigned keyboard shortcut used with hot keys in web sites. We considered setting up hotkeys to the main sections of this website, however there are many problems associated with this technology that does not necessarily help with accessibility. Many hot key combinations are reserved by browsers and operating systems and are also not universal across all browsers. However, one important hotkey have been installed for the important invisible link from the start of the page to the content and submenus in a page, namely:

Alt + 1 then Enter = Skip Navigation to page's main content - this jumps to the Heading of a page's content.

Alt + 2 then Enter = Skip Navigation to the site map page.

Text Size & Contrast

All text has been set using relative values meaning the size of the text in this site can be increased by a visitor's browser. High contrast values between text colours and background colours have been used to aid legibility.

General Points

ALT tags are provided for all images where they convey textual information. Where possible these types of images have been avoided. Good practice has been used throughout this site in XHTML mark-up and the design of Cascading Style Sheets.

Site Map

A site map is provided to quickly help show the sections and information on this website.


When you print a page from this website the side bars (including menus) and footer are not printed. This saves paper, ink and ensures you only print the information you need.


W3C CSS 2.1 
CSS 2.1 Compliant

W3C XHTML 1.0 
XHTML 1.0 Transitional Compliant

WAI - Priority 1
Web Accessibility Initiative Priority 1 (most Priority 2 points also met).