if (document.images) {
IM = new Array(); OM = new Array();

IM[1] = new Image(); IM[1].src = '/image/bs01.gif';
OM[1] = new Image(); OM[1].src = '/image/bs01_on.gif';
IM[2] = new Image(); IM[2].src = '/image/bs02.gif';
OM[2] = new Image(); OM[2].src = '/image/bs02_on.gif';
IM[3] = new Image(); IM[3].src = '/image/bs03.gif';
OM[3] = new Image(); OM[3].src = '/image/bs03_on.gif';
IM[4] = new Image(); IM[4].src = '/image/bs04.gif';
OM[4] = new Image(); OM[4].src = '/image/bs04_on.gif';
IM[5] = new Image(); IM[5].src = '/image/bs05.gif';
OM[5] = new Image(); OM[5].src = '/image/bs05_on.gif';
IM[6] = new Image(); IM[6].src = '/image/bs06.gif';
OM[6] = new Image(); OM[6].src = '/image/bs06_on.gif';
IM[10] = new Image(); IM[10].src = '/image/bs_info.gif';
OM[10] = new Image(); OM[10].src = '/image/bs_info_on.gif';

IM[11] = new Image(); IM[11].src = '/image/b_top.gif';
OM[11] = new Image(); OM[11].src = '/image/b_top_on.gif';
IM[21] = new Image(); IM[21].src = '/image/bs_nishin.gif';
OM[21] = new Image(); OM[21].src = '/image/bs_nishin_on.gif';

IM[100] = new Image(); IM[100].src = '/image/b_top02.gif';
OM[100] = new Image(); OM[100].src = '/image/b_top02_on.gif';
}

function MI(n) { if (document.images) document.images['M' + n].src = IM[n].src; }
function MO(n) { if (document.images) document.images['M' + n].src = OM[n].src; }