Add($add)
Create a new Schedule
Remove($schedule_title)
Removes Schedule '$schedule_title'
List()
Returns Schedules List
Configuration()
Returns Schedules Configuration
Configurations($sort)
Gets the configuration for all Schedules sorted by '$sort' (default: 'title')
Period_Check($begin_day,$begin_hour,$end_day,$end_hour)
Checks that Period beginning is before Period end
Match($sched,$dt)
Checks that the schedule '$sched' matches the datetime '$dt' Returns 1 if it maches, 0 if it doesn't
Valid_Name($name)
Checks that '$name' is valid for a Schedule name