I try to made a new add-on and cannot find out how to disable the right sidebar if it on. I use the sample.inc.php script to play a little bit with it. It should be very easy to do, but how?

my board: http://www.dragonclan-forum.de
my hobby: http://www.biker-reise.de
Ich kann bei Fragen zu UBBthreads in Deutsch weiterhelfen oder es zumindest versuchen