function editMonth(fieldname,month,monthDayLength) {

	if (!(isNumeric(month))) {
		passed = false;
		errorMessage = errorMessage + fieldname + " month must be numeric."  + CRLF;
	} else {
		if (monthDayLength == 2) {
			  strMonth = month.toString();
				if (strMonth.length < 2) {
					passed = false;
					errorMessage = errorMessage + fieldname + " month must be 2 digits long." + CRLF;
				}
		} else {
			if ((month < 1) || ( month > 12 )) {
				passed = false;
				errorMessage = errorMessage + fieldname + " month must be between 1 and 12."  + CRLF;
			}
		}
	}

}