función de anillo adddays
cDate = date()
see cDate + nl # 24/05/2015
cDate = adddays(cDate,10)
see cDate + nl # 03/06/2015
Joker
cDate = date()
see cDate + nl # 24/05/2015
cDate = adddays(cDate,10)
see cDate + nl # 03/06/2015
AddDays(cDate,nDays) ---> Date from cDate and after nDays