<a name=fig1 href="fghjkdfghj" REL="EMBED, PRESENT">Figure </a>
where the relation ship values mean
EMBED Embed this here when presenting it
PRESENT Present this whenever the source document
Note that you can have various combinations of these, and if
the browser doesn't support either one, it doesn't break.
A see that using this as a method for selectable icons means nesting
anchors. Hmmm. But I hadn't wanted a special tag.
Annother way would be to declare an entity with SYSTEM attribute
giving the URL and then invoke that entity, but that would mean an
extendable entity dictionary which is not currently needed.