The JEWCALDATE structure contains a date, either a Gregorian
or a Hebrew date. It is used by the various Jewish calendar functions.
typedef struct tagJEWCALDATE
typedef JEWCALDATE FAR* LPJEWCALDATE;
Contains the day of the date (1 .. 31 for Gregorian date).
Contains the month of the date (1 .. 12 for Gregorian date).
Contains the year of the date (the year must always have 4 digits and
must be in range 1583-3000 for Gregorian years and 5360-5860 for