The easiest way to customize the navigation panel is to turn it off
for selected nodes. This is done using the commands \htmlpanel{0}
and \htmlpanel{1}. All nodes started while \htmlpanel is set
to 0 are created without a navigation panel.
Furthermore, the navigation panels (and in fact the complete outline
of the created HTML files) can be customized to your own taste
by redefining some Hyperlatex macros. In fact, when it formats an
HTML node, Hyperlatex inserts the macro \toppanel at the
beginning, and the two macros \bottommatter and bottompanel at
the end. When \htmlpanel{0} has been set, then only \bottommatter
is inserted.
The macros \toppanel and \bottompanel are responsible for
typesetting the navigation panels at the top and the bottom of every
node. You can change the appearance of these panels by redefining
those macros. See siteinit.hlx for their
default definition.
The following commands are useful for defining these macros:
\HlxPrevUrl, \HlxUpUrl, and \HlxNextUrl return the URL
of the next node in the backwards, upwards, and forwards direction.
(If there is no node in that direction, the macro evaluates to the
empty string.)
\HlxPrevTitle, \HlxUpTitle, and \HlxNextTitle return
the title of these nodes.
\HlxBackUrl and \HlxForwUrl return the URL of the previous
and following node (without looking at their depth)
\HlxBackTitle and \HlxForwTitle return the title of these
nodes.
\EmptyP{expr}{A}{B} evaluates to A if expr
is not the empty string, to B otherwise.