Factory Calender in Select options

Hi,

I need to add the factory calender in Select Option.

(I have already added f4_date function module for F4 help as Factory calender.)

Eg. If i select any holiday in the selection screen - need message for " HOLIDAY" like that..

:-- SELECT-OPTIONS: s_date FOR sy-datum NO-EXTENSION.

Experts please help me.

Thanks.

Viji.