F4_DATE in Web Dynpro

Hi guys,

I want the features of this function module to mark down the holidays in the calendar search help, but I have no idea how to use this FM in Web Dynpro.

Any ideas?

Thanks,

Raúl

P.S. This is how I would do it outside Web Dynpro.

SELECT-OPTIONS S_DATE FOR Z10_LEAVE_REQ-ERDAT.

AT SELECTION-SCREEN ON VALUE-REQUEST FOR S_DATE-LOW.

CALL FUNCTION 'F4_DATE'

EXPORTING

FACTORY_CALENDAR_ID = 'PU'

IMPORTING

SELECT_DATE = S_DATE-LOW.