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

IM[1] = new Image(); IM[1].src = '/image_top/b01.gif';
OM[1] = new Image(); OM[1].src = '/image_top/b01_on.gif';
IM[2] = new Image(); IM[2].src = '/image_top/b02.gif';
OM[2] = new Image(); OM[2].src = '/image_top/b02_on.gif';
IM[3] = new Image(); IM[3].src = '/image_top/b03.gif';
OM[3] = new Image(); OM[3].src = '/image_top/b03_on.gif';
IM[4] = new Image(); IM[4].src = '/image_top/b04.gif';
OM[4] = new Image(); OM[4].src = '/image_top/b04_on.gif';
IM[5] = new Image(); IM[5].src = '/image_top/b05.gif';
OM[5] = new Image(); OM[5].src = '/image_top/b05_on.gif';
IM[6] = new Image(); IM[6].src = '/image_top/b06.gif';
OM[6] = new Image(); OM[6].src = '/image_top/b06_on.gif';
IM[7] = new Image(); IM[7].src = '/image_top/b07.gif';
OM[7] = new Image(); OM[7].src = '/image_top/b07_on.gif';
IM[8] = new Image(); IM[8].src = '/image_top/b08.gif';
OM[8] = new Image(); OM[8].src = '/image_top/b08_on.gif';

IM[10] = new Image(); IM[10].src = '/image_top/b_home.gif';
OM[10] = new Image(); OM[10].src = '/image_top/b_home_on.gif';


IM[111] = new Image(); IM[111].src = '/image/b_back.gif';
OM[111] = new Image(); OM[111].src = '/image/b_back_on.gif';
IM[112] = new Image(); IM[112].src = '/image/b_back.gif';
OM[112] = new Image(); OM[112].src = '/image/b_back_on.gif';

IM[100] = new Image(); IM[100].src = '/dept/image/bd_pick.gif';
OM[100] = new Image(); OM[100].src = '/dept/image/bd_pick_on.gif';
IM[200] = new Image(); IM[200].src = '/dept/image/bd_courses.gif';
OM[200] = new Image(); OM[200].src = '/dept/image/bd_courses_on.gif';
IM[300] = new Image(); IM[300].src = '/dept/image/bd_academic.gif';
OM[300] = new Image(); OM[300].src = '/dept/image/bd_academic_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; } 