# File lib/luck/display.rb, line 93
  def cycle_controls
    if RUBY_VERSION.to_f > 1.8
      index = @active_pane.controls.keys.index @active_pane.controls.key(@active_control)
    else
      index = @active_pane.controls.keys.index @active_pane.controls.index(@active_control)
    end
    
    begin
      index += 1
      index = 0 if index >= @active_pane.controls.size
    end until @active_pane.controls[@active_pane.controls.keys[index]].respond_to? :handle_char
    old = @active_control
    @active_control = @active_pane.controls[@active_pane.controls.keys[index]]
    old.redraw
    @active_control.redraw
  end