I am using an HTML document which includes non-textual icons for navigation or other purposes. The text has been removed and the icons made internationally acceptable because this reduces the work involved in localising this page. As my mouse moves over the icons a small pop-up appears containing a prompt. As I move my mouse away from the icon the pop-up disappears. It is also easier to dismiss.
Auxiliary data is data which supports the current page, but is only displayed on request.
We should be able to specify lang and charset info as we call in or define the auxiliary data. It may also make sense to extend this idea of ranges to data which is not strictly speaking auxiliary data. For example, any short phrase which is repeated a number of times on a particular page could be referred to using a range element the first time it is used and called in to the text where needed further down the page. This could concievably carry benefits in terms of consistency, reduced file size and productivity in page creation. Then, of course, we could look at extending our idea of accessing small amounts of a larger corpus so that we could access data records in a database.