Many modifications to avoid JavaScript security rules of

Many modifications to avoid JavaScript security rules of
Mozilla/Galeon/Netscape V6 browsers.

In particular, now every frame (but the two headers that are completely
dummy) is made by UWOBO. The stylesheet applied, named resolve_topurl.xsl
(key = RT) substitutes where requested the URL of the interface, that
can no longer be inferred in JavaScript from the current URL (that now
refers to UWOBO).

Hopefully, together with the previous modification to recognize browsers
supporting only UNICODE or supporting only the symbol font, all the
known compatibility problems have been solved.