home_02 = new Image(37, 37);
  home_02.src = "../img/forward01.gif";

  home_01 = new Image(37, 37);
  home_01.src = "../img/forward02.gif";
  
  home_03 = new Image(37, 37);
  home_03.src = "../img/back01.gif";

  home_04 = new Image(37, 37);
  home_04.src = "../img/back02.gif";
  
  home_05 = new Image(37, 37);
  home_05.src = "../img/back03.gif";

  home_06 = new Image(37, 37);
  home_06.src = "../img/back04.gif";