You will need to create a file called "dropdown.txt" (or anything you 
specify to me) and put it in your workspace/data directory. 
The format is as follows:
 
Name, location
Book, location, date
 Chapter, location, date
  Section, location
 
 
Sections are specified by the number of spaces you indent them, and there
can be any number of levels, from 0 to somewhere below infinity.  Anytime
you specify a third field, it is assumed to be a date, which specifies
that everything after it, up to the point there is another "date" on the
same level, will only appear in the dropdown if the current page loaded is
within those dates.
 
The "Name" is any entry whatsoever, and it'll point to the location you
specify (specify a relative path).  There can be any number of these and
they can appear at any level.  "Book," "Chapter," and "Section," do not
necessarily have to be books, chapters, and sections.  They are listed
like that to link this implementation to Bryans.
 
Example (Chris Crosby's dropdown):
 
SUPEROSITY HOMEPAGE,/
ARCHIVES BY DATE,/calendar.html
SUPEROSITY SUPERSTORE,/store/
PARKEMON ANIMATED SHORT,/parkemon/parkemon.htm
ALFDOT: NEWS FOR MORONS,/alfdot/
Superosity,/d/19980301.html,3/1/1998
 Superosity Storylines,/d/19980301.html,3/1/1998
  Best Friend,/d/19980301.html
  Marlene's Story,/d/19980308.html
[etc...]
 
The above file would exactly recreate the dropdown menu that Chris has
right now.  However, I suspect Chris never wanted the subsections of the
subsections option.  Therefore a better choice for him would probably be:
 
SUPEROSITY HOMEPAGE,/
ARCHIVES BY DATE,/calendar.html
SUPEROSITY SUPERSTORE,/store/
PARKEMON ANIMATED SHORT,/parkemon/parkemon.htm
ALFDOT: NEWS FOR MORONS,/alfdot/
---------------------,/
Superosity Storylines,/
Best Friend,/d/19980301.html
Marlene's Story,/d/19980308.html
[etc...]
 
...which will just create one big list.  On the other hand, David Willis
has quite a lot of comics and storylines and he uses all the sections and
subsections and stuff.  His file would look like this (note that because
he uses commas, some entries must be quoted):
 
"Roomies: Year One, not by Frank Miller",/d/19970908.html,9/8/1997
 Fall,/d/19970908.html,9/8/1997
  Moving In,/d/19970908.html
  Psy-cute-ic,/d/19970917.html
  Alien Abductions,/d/19971017.html
  She's Pristine!,/d/19971027.html
  Optimus Prime,/d/19971103.html
  Obligatory Flashback Sequence,/d/19971110.html
  #@!! Christmas Spirit,/d/19971208.html
 Spring,/d/19971017.html,10/17/1997
  Robo-Vac,/d/19971017.html
  Titanic,/d/19971017.html
  Don't Mess with a Man and his Bicycle,/d/19980302.html
[etc...]
 
Why did I do it this way?  Maximum flexability.  By separating the "date"
limits from the filenames, you could potentially, say, put in a special
"April Fool's" page into the dropdown menu  in April, without it having to
point to the April 1 daily page.  Conceivably, you ought to be able to
make a "weekly dropdown" page, too, but I'd have to assign it a different
tag and a different file.  Just let me know if that's something you'd
want.  Also, the "dates" on the Book/Chapter lines can either be in
2/24/2000 format, or 20000224 format.  Maybe I can make a special "Brit"
version for John and Alan that uses 24/2/2000 format...  :)