How to use a cancel button........

hello everyone,
i have a selection screen, from where i am calling a selection-screen as a pop-up screen. the fields i am checking on the pop-up screen will get append on the previous screen. now the problem i am facing with the cancel button.
if i am pressing the cancel button still the checked fields are getting appended.
i want to exit from the screen and want to keep the previous screen as it is. it is a simple report program.
please help me out.
thanks i advance.

I am using set screen 0. and leave screen.
but still the problem persists.
let me tell you in detail.
i am going to pop-up screen to get the fields appended on my previous screen.
if i check some checkboxes on it and click ok then according to those checked fields the corresponding select-options should come on previous screen.
because i have added set screen 0. to 'OK'.
now what i am facing is if i check some checkboxes on the pop-up and say 'CANCEL' still the program is appending the those checkboxes and appending them on the previous screen.
what i am expecting is, it should exit the pop-up screen and should maintain the previous screen as it is.
thanks

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import javax.swing.*;
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Message was edited by:
TheHolyLancer
i edited the part so it is bold
Message was edited by:
TheHolyLancer

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