Changing the behavior of closing the top of a laptop in KDE4

[Guan de dio]

Hi everybody

      I want to change the behavior of the OS when I close the top of my
laptop. Currently  It is "starting  in Suspension", and I want to set in
"don't do nothing".

     Where is the  file or program to set this setting? I don't find it in
KDE4.

Thanks,
GUAN