For example, you might want a table with only some horizontal lines:
               1      5
               2      6
               3      7
               4      8
    _____________________
    Sub total  10     26
    _____________________
               5      9
               6      10
    _____________________
    Total      21     45
    _____________________
I'm not quite sure how this could be specified, but some kind of
line attributes on the <tr>, <th>, and <td> elements might work.
Then again, maybe this kind of thing should be left to style sheets.
    Tony
--- Tony Jebson     --- International Computers Limited (ICL)
--- aj@wg.icl.co.uk --- http://www.to.icl.fi/~aj/index.html
--- All opinions expressed here (however stupid) are my own,
--- and nothing stated here is an official statement by ICL.