content: sub init()
  
     
      InitScreenStack()
      m.top.getScene().callFunc("ShowFirstScreen")
  end sub
  
  
  function onKeyEvent(key as string, press as boolean) as boolean
  
      handled = false
  
      if press
  
          if key = "back"
  
              ' if m.buttons_list.visible = true
  
              '     m.ExitGroup.visible = true
              '     m.cancelExitDialogeButton.setFocus(true)
  
              '     handled = true
  
              ' else if m.buttons_list.visible = false
  
              '     m.buttons_list.visible = true
              '     m.buttons_list.setFocus(true)
  
              '     handled = true
  
              ' end if
          end if
      end if
      return handled
  
  end function