sommer_blumenkinder     = new Image ();
sommer_blumenkinder.src = "sommer_buttons_on_20.jpg";
sommer_spieldosen       = new Image ();
sommer_spieldosen.src   = "sommer_buttons_on_21.jpg";
sommer_baume            = new Image ();
sommer_baume.src        = "sommer_buttons_on_22.jpg";
sommer_kafer            = new Image ();
sommer_kafer.src        = "sommer_buttons_on_23.jpg";
sommer_bogen            = new Image ();
sommer_bogen.src        = "sommer_buttons_on_24.jpg";