- drop-down menus on home and article pages
- expandable site map
- variable sidebar on home and article pages
- print options
- choice of background colors (albeit a limited range at present)
- highlighting of search results
- minor improvement of translation facility
A number of the above require settings to be preserved throughout a browsing session. On this site this is accomplished by using session cookies. This type of cookie is automatically destroyed when the browser is closed so settings will not be "remembered" if the site is revisited at some subsequent date. We do not set any persistent cookies.
There are no alternative stylsheets for the site but we do offer a limited range of background colors which we consider compatible with the predominant theme (green).
Searching is applicable to most on-site articles. In the case of pdf documents there are some restrictions: searching is carried out on the main content only, with appendices and references generally not included; matches are listed by page only; there is no highlighting of the referenced pdf pages; page numbering refers to online pages and may differ slightly from hard-copy numbering; although clicking on a page link will usually open a pdf document at the correct page, subsequent links to other pages within the same document may fail. In addition, it should be noted that some pdf documents cannot be searched from within Adobe Acrobat (because of font incompatibilities). Four search modes are provided:
- Frequency search. As the name implies this method counts the number of times the search terms are matched in returned documents. The rules regarding allowed input are identical to those for the Context method. A list of matched documents (documents in which each term is matched at least once) is returned, ordered by "total" matches. There are no extracts nor highlighting in the documents themselves. The matching of words is similar to that employed in method 1.
- Title search.Use this specifically to find a particular document. The rules governing input are exactly the same as for method 1. A match is recorded if any of the search terms occur in a document title. An unordered list of matching documents is returned.
This site has been tested on Explorer 6 and 7, Firefox 1.5, Opera 9.01, Netscape 6.2 and 7 on the Windows platform. Hopefully there will be no problems on other platforms, but no provision has been made for running in older browser versions, or browsers not supporting stylesheets. We have endeavoured to use cross-browser code which should be recognised by all modern browsers, but there will undoubtedly be differences in rendering between browsers other than those mentioned.
All pages on the site scale-up satisfactorily using the text-size or zoom buttons of the browsers mentioned above except that Netscape 6 enlarges text only not the containing boxes. Enlargement may, however, reduce the clarity of some images and diagrams.