[Phpcompta-contrib] True periods

[Skipper]

Hi Dany,

is there a way to get the real first and last period of an excercise? There is 
some code that reads (simplified)
<snip>
  $year=$User->get_exercice();
  $date_from->value="01.01.".$year;
</snip>

But this is obviously wrong for excerises that do not correspond with calendar 
years.

Any hint?

Thanks,
Skipper