reg:passing a value to a concatenated field

hi everyone...

LOOP AT data_tab.

REPLACE '/' IN data_tab-wgtyp WITH '0'.

READ TABLE fieldcat1 WITH KEY fieldname = data_tab-wgtyp.

IF sy-subrc = 0.

CONCATENATE 'data_tab-' month INTO months.

MOVE data_tab-wgtyp TO text.

CONCATENATE '<dyn_wa>-' text INTO text1.

WRITE (months) TO value.

ASSIGN text1 TO <fs>.

WRITE (value) TO <fs>.

ENDIF.

APPEND <dyn_wa> TO <dyn_table>.

ENDLOOP.

in the above code,

i want to pass a value for the field <dyn_wa>-text(0101)

i concatenate this into text1,so

text1 = <dyn_wa>-0101.

i need to pass the value for this field,how to do that..

pls help very very urgent. thanks in advance...

regarsd,

balaji.s