# File gglib/ext/widgets.rb, line 431
  def checked=(val)
    @checked = val
    if @checked
      if @parent.selected.nil?
        @theme = @themek.newInstance(CheckedHk.new(@x1,@y1,@x2,@y2))
        @parent.selected = self
        return
      end
      return if @parent.selected  == self
      @theme = @themek.newInstance(CheckedHk.new(@x1,@y1,@x2,@y2))
      @parent.selected.checked = false
      @parent.selected = self
    else
      return if @parent.selected  != self
      @theme = @themek.newInstance(self)
    end
  end