Parses a date string and returns the day of the week. Note that the actual name of this token is ParseDayOfWeek() and not DateParseDayOfWeek. Use ParseDayOfWeek() instead.
AFTKN_DATE_PARSE_DAY_OF_WEEK or 634
WORD ParseDayOfWeek(ANSISTRING DateString)
For example, "Jun 17 2012" returns 0 for Sunday.
Zero-based integer (0=Sunday).