Select-options in module pool. Please respond quickly

Hi Guru's,

I have created a program by following example in SDN ( which contains select options), I have called in the PBO and PAI, Select options which is in the subscreen area appears, but when I am giving some values into the select options

Say 10 to 20. now when I enter debug mode I was unable to catch the values entered in the subscreen area. Please let me know how to catch the values.

example.

REPORT ZSCREEN101.

TABLES

: z9mm_vend_qual. "Vendor Certification

data: s_low type matkl,

s_high type matkl.

SELECTION-SCREEN BEGIN OF SCREEN 101 AS SUBSCREEN.

SELECTION-SCREEN BEGIN OF LINE.

SELECT-OPTIONS : s_MATKL for z9mm_vend_qual-MATKL MATCHCODE OBJECT mcd.

SELECTION-SCREEN END OF LINE.

SELECTION-SCREEN END OF SCREEN 101.

In modulepool program I am calling in this manner below.

PROCESS BEFORE OUTPUT.

MODULE STATUS_0101.

CALL SUBSCREEN SUB_101

INCLUDING 'ZSCREEN101' '101'.

PROCESS AFTER INPUT.

CALL SUBSCREEN SUB_101.

Please let me know how to catch the variables which I have given in the screen.

Thanks in advance,

Sagar.