bu06_01_on = new Image();
bu06_01_on.src = "../../image/submenu/bu06_01_on.gif";
bu06_01_off= new Image();
bu06_01_off.src= "../../image/submenu/bu06_01_off.gif";

bu06_02_on = new Image();
bu06_02_on.src = "../../image/submenu/bu06_02_on.gif";
bu06_02_off= new Image();
bu06_02_off.src= "../../image/submenu/bu06_02_off.gif";