Moving from one screen to another

Hi all,

I have developed an ALV program, i have used 2 screens. when i double on one value the 2nd screen with more details should be displayed. till this point it is fine.

But when i press back button it is coming to 1st screen but the screen is empty.

I have used okcode for coming back.

case ok_code.

when 'BACK'.

Leave to screen 100.

clear ok_code.

endcase.

Is leave screen statement wrong, do i need any other statement.

Thanks in advance,

regards,

NarsiReddy.