bu03_01_on = new Image();
bu03_01_on.src = "../../image/submenu/bu03_01_on.gif";
bu03_01_off= new Image();
bu03_01_off.src= "../../image/submenu/bu03_01_off.gif";

bu03_02_on = new Image();
bu03_02_on.src = "../../image/submenu/bu03_02_on.gif";
bu03_02_off= new Image();
bu03_02_off.src= "../../image/submenu/bu03_02_off.gif";

bu03_03_on = new Image();
bu03_03_on.src = "../../image/submenu/bu03_03_on.gif";
bu03_03_off= new Image();
bu03_03_off.src= "../../image/submenu/bu03_03_off.gif";