backs = new Image();
  backs.src = "images/backstage_out.jpg";

  kibe = new Image();
  kibe.src = "images/uzkibe_out.jpg";

  veixm = new Image();
  veixm.src = "images/veiksmas_out.jpg";

  daend = new Image();
  daend.src = "images/pabaiga_out.jpg";

  backs_ov = new Image();
  backs_ov.src = "images/backstage_over.jpg";

  kibe_ov = new Image();
  kibe_ov.src = "images/uzkibe_over.jpg";

  veixm_ov = new Image();
  veixm_ov.src = "images/veiksmas_over.jpg";

  daend_ov = new Image();
  daend_ov.src = "images/pabaiga_over.jpg";

  function chpic(img_name,img_src) {
    document[img_name].src=img_src;
  }