The indented list below shows the structure of the CRG site, with links to the home page for each section.
As you can see from the icons above, each of the major sections has its own colour scheme which you can use to identify where you are. These colours are also used for links:
Red - Research - Link - Visited Link
Blue - People - Link - Visited Link
Yellow - Events - Link - Visited Link
Purple - Groups - Link - Visited Link
Green - Resources - Link - Visited Link
For people who have browsers that support stylesheets, there are two exceptions to this use of colour. The first exception is that links which go to anchors within the same page will have the colour of visited links, whether that anchor has actually been visited or not. The second exception is that links which lead to pages outside the CRG WWW pages are coloured in the usual default of blue for normal links and purple for visited links.
The structures of pages within the CRG site is similar across sections and topics. The following is a list of the elements within the page, with links to the feature if it is present within this page, in a rough order of their prevelence across the pages.
Every attempt has been made to facilitate the access of these pages by users of non-graphical browsers, or those who choose to surf without images. There are basically four functions of images within WWW pages, and we have handled them as detailed below:
The CRG WWW pages contain very few images which are used solely for decorative purposes. Instead, stylesheets are used to give such decoration as coloured horizontal rules or images for bullet points. On the rare occassions where decorative images are used, an empty
alt attribute indicates that the image is not important.
The CRG WWW pages do use icons to enable navigation around the WWW site. For these images, the
alt attribute contains a description of the function of the icon surrounded by square brackets (
[function]). For example, an image with the alternative text
[home] indicates a home page while an image with the alternative text
[next] indicates a link to the next page in a sequence.
The ideal method of dealing with these images would be to use the HTML 4.0
OBJECT element, which can contain any other HTML, and thus could give a longer description of the image. However, the
OBJECT element is not supported (and indeed may crash) the most recent browsers, so this change is not worth making at the moment.
Where possible, a textual description of the image will be supplied either within the
alt attribute or within the text of the page itself. Where this is not possible (if the information within the image is best given within a table, say), a separate page will give a description or alternative rendering of the information and a link to this page will be given within the
longdesc attribute of the
IMG element and within the page itself for those browsers who do not support this attribute.
Where images are used to supply meta-information within the CRG pages, the
alt attribute contains the meta-information within braces (
(meta-information)). For example,
(Research - Applications),