Changing the header on the -man nroff macro

[Mike Peltier]

   I have been trying to figure out how to change the header that the .TH
macro produces to something like 'CAEN Technical Note', instead of the
usual 'Unix Programmer's Manual'.  Any ideas?  I've looked at the
/usr/lib/macros/an file, and am completely clueless as to what every-
thing in there means.  I see the '.deTH' line, but everything subsequent
is a jumble of backslashes, parenthesis, and brackets as far as I'm
concerned.  Any insights on how this macro does it's magic?  Thanks
for your help.
   Please send repies through E-mail, since I don't usually keep abreast
of this newsgroup.  Thanks!