absence is a calendar tool for keeping track of
people (but could be adapted for any other object)
on a daily basis. It is meant to replace that
ubiquitous whiteboard in the office of the boss.
You know the one, where someone has used a
permanent magic marker to mark a matrix, and
vacations/training/etc. are marked with
non-permanent markers as blocks. absence is a CGI
system, and has a resolution of one day. It is not
intended to be used for keeping appointments or
any other activity that requires a finer
resolution. It generates an image for each month
to be displayed using the GD library, and it can
be configured to produce PNG or GIF (or even JPEG).