FM pop up to confirm

CALL FUNCTION 'POPUP_TO_CONFIRM'
        EXPORTING
          TITLEBAR      = 'Confirm'
          text_question = 'Are you sure to delete Project from database?'
          TEXT_BUTTON_1 = g_c_Yes
          TEXT_BUTTON_2 = g_c_NO
        IMPORTING
          ANSWER        = g_f_answer.

      if g_f_answer eq '1'.

          Do something

Elseif g_f_answer eq '2'.

Do some other logic

Endif.