my @menu_items = (
		  {
		   path => '/_File',
		   type => '<Branch>'
		  },
		  {
		   path => '/File/_Quit',
		   accelerator => '<control>Q',
		   callback => \&main_quit
		  },
		  {
		   path => '/_Hilfe',
		   type => '<LastBranch>'
		  },
		  {
		   path => '/File/About',
		   callback => \&show_about_msg
		  }
		 );