>A user enters a day in a spinner. They then choose a month from a combobox. They do not enter a year. Is there an
>easy way to tell if the month/day combination is valid?

lcDay = STR(Myspinner.value)
lcMonth = STR(cmbMonth.List[ ListIndex ])
dDate = ctod(lcMonth+"/"+lcYear+"/"+str(year(date())))

If the ldDate is empty you know the date is invalid.