From XSLT terminology FAQ at http://www.dpawson.co.uk/xsl/xslvocab.html
"DOCUMENT ORDER:A traversal of the document tree from start to end, in
written order. The ancestor and preceding axes use reverse document order
and the attribute and namespace axes are unordered. If parentheses are used
for grouping, you will always get forward document order."
Actually the quote is wrong (DAVEP:-)
the attribute and namespace are both forwards axes.
What Dave means about paremthesese is
ancestor::*[1] gives you the first ancestor in reverse document order
ie your parent
whereas
(ancestor::*)[1] gives you your first ancestor in document order, ie
your most ancient ancestor; Adam (or Eve) in some
cultures.
David
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