var hb_on = new Array();

hb_on[0] = new Image(); hb_on[0].src = "images/lb_1b.gif";
hb_on[1] = new Image(); hb_on[1].src = "images/lb_2b.gif";
hb_on[2] = new Image(); hb_on[2].src = "images/lb_3b.gif";
hb_on[3] = new Image(); hb_on[3].src = "images/lb_4b.gif";
hb_on[4] = new Image(); hb_on[4].src = "images/lb_5b.gif";
hb_on[5] = new Image(); hb_on[5].src = "images/lb_6b.gif";
hb_on[6] = new Image(); hb_on[6].src = "images/lb_7b.gif";
hb_on[7] = new Image(); hb_on[7].src = "images/lb_8b.gif";
hb_on[8] = new Image(); hb_on[8].src = "images/lb_9b.gif";


var hb_off = new Array();
hb_off[0] = new Image(); hb_off[0].src = "images/lb_1.gif";
hb_off[1] = new Image(); hb_off[1].src = "images/lb_2.gif";
hb_off[2] = new Image(); hb_off[2].src = "images/lb_3.gif";
hb_off[3] = new Image(); hb_off[3].src = "images/lb_4.gif";
hb_off[4] = new Image(); hb_off[4].src = "images/lb_5.gif";
hb_off[5] = new Image(); hb_off[5].src = "images/lb_6.gif";
hb_off[6] = new Image(); hb_off[6].src = "images/lb_7.gif";
hb_off[7] = new Image(); hb_off[7].src = "images/lb_8.gif";
hb_off[8] = new Image(); hb_off[8].src = "images/lb_9.gif";


function rollon(targetimage){
if(targetimage=="kaicho"){
document.images[targetimage].src=hb_on[0].src;
}
if(targetimage=="akusesu"){
document.images[targetimage].src=hb_on[1].src;
}
if(targetimage=="toiawase"){
document.images[targetimage].src=hb_on[2].src;
}
if(targetimage=="enkaku"){
document.images[targetimage].src=hb_on[3].src;
}
if(targetimage=="kaisoku"){
document.images[targetimage].src=hb_on[4].src;
}
if(targetimage=="sosikizu"){
document.images[targetimage].src=hb_on[5].src;
}
if(targetimage=="giansyo"){
document.images[targetimage].src=hb_on[6].src;
}
if(targetimage=="50on"){
document.images[targetimage].src=hb_on[7].src;
}
if(targetimage=="jigyou"){
document.images[targetimage].src=hb_on[8].src;
}
}

function rolloff(targetimage){
if(targetimage=="kaicho"){
document.images[targetimage].src=hb_off[0].src;
}
if(targetimage=="akusesu"){
document.images[targetimage].src=hb_off[1].src;
}
if(targetimage=="toiawase"){
document.images[targetimage].src=hb_off[2].src;
}
if(targetimage=="enkaku"){
document.images[targetimage].src=hb_off[3].src;
}
if(targetimage=="kaisoku"){
document.images[targetimage].src=hb_off[4].src;
}
if(targetimage=="sosikizu"){
document.images[targetimage].src=hb_off[5].src;
}
if(targetimage=="giansyo"){
document.images[targetimage].src=hb_off[6].src;
}
if(targetimage=="50on"){
document.images[targetimage].src=hb_off[7].src;
}
if(targetimage=="jigyou"){
document.images[targetimage].src=hb_off[8].src;
}
}