Ah! The difference is in the simultaneous visibility of the surrounding
context---whether the browser overlays the current window entirely or
partially. An interesting question suggests itself here about whether
the hyperlink should always lead to a new, resizable, window, but that is
a browser issue, surely.
Anyway, hyperlinks don't normally *have* to point to a separate file, do
they? I was sure branches to labels were allowed. However, that is a
different issue. The feature I have seen in Guide that would satisfy
both footnote and marginal note users is that of optionally hidden text.
Click on the link and the text merges into the current document.
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%% Dr M J Piff, School of Mathematics and Statistics, University of %%
%% Sheffield, UK. +44 114 282 4431 e-mail: M.Piff@sheffield.ac.uk %%
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