This website has been implemented using pure (X)HTML and Cascading Style Sheets for greater usability, cross-browser compatibility and accessibility.

Internal "skipto" links have been added for the benefit of those navigating by screen readers, and the flow of menu pages matches the left-to-right manner in which they read the page. All images have associated alt, title, and longdesc attributes as required.

The text size can be changed using your browser: For Firefox hold down CTRL and scroll the mouse wheel, for Internet Explorer 7 click on the button that says "Page" in the top toolbar, then select "Text Size". For other browsers, you can find out how to change the text size using the help menu.

The presentation of this website is enhanced by JavaScript, which should be enabled by default. This allows images to be presented at a size appropriate for the window that you are using to view the site: larger images will be shown if you increase your window size. Clicking on an image will grey out the rest of the page, and show you the image at an even larger size. The foreground and background colours of the website can also be selected using the menu at the top of the page.

If JavaScript is disabled, then the menu to select the colourscheme will not appear, the images will be displayed at their smallest size, and you can click on the images to obtain a larger version in a pop-up window.