cuantos domingos tiene un periodo

[[poliburro]]

asi quedo finalmente

Function GetSundays(IniDate: TDateTime; EndDate: TDateTime): Integer;
Var
Sundays: Integer;
Begin
Sundays := WeeksBetween(IniDate,EndDate);
If DayOfWeek(IniDate) = 1 then Sundays := Sundays + 1;
If DayOfWeek(EndDate) = 1 Then Sundays := SunDays + 1;
Result := SunDays;
End;