How can I get the main menu window (_screen) to close using the window closeable button on the form. I've done this with regular forms with the following:

form.queryunload = this.destroy
form.destroy = clear events
cmdquit.click = thisform.release

I can't quite figure out how to do it from the main menu window. I'm assuming that I need a clear events somewhere in _screen.property, but I can't figure out where.

Thanks for any help...