Parameters:
- client_id: two comma separated client ID's, former of own club, latter of SJO
- thuis: "JA", "NEE" or empty (default=JA)
- uit: "JA", "NEE" or empty (default=JA)
- teamcodes: comma separated team codes of second client ID
- eigenwedstrijden: "JA", "NEE" or empty (default=JA)
- aantaldagen: number (default=7)
- weekoffset: number (default=-1)
- aantalregels: number (default=100)