getting values form window

[brr]

in my form there is 4 fields in that 2nd one is list box in that if u select item have to open pop up window
and in that pop up window after enter all values( 4 fields) when click submit button window have to close and control come back to parent window
untill this i did but iam getting problem from now iam not getting values of pop up window in my parent window how is it possible???