LASTDAY(<N month>, <N year>)
 Evaluates the date of the last day of a month.
 Returns <expN> last day of the month, or zero if invalid <month> or <year>.

 <month> is in the range 1 to 12.
 <year> is in the range 1 to 9999.

 IF LASTDAY( MONTH(DATE()), YEAR(DATE()) )
    <DO end of month processing>
 ENDIF


             Placed in the Public Domain by Tom Rettig Assoc.