function newImage(arg) {
rslt = new Image();
rslt.src = arg;
return rslt;
}

function bOver(image) {
document[image].src = eval(image +"_over.src");
}

function bOn(image) {
document[image].src = eval(image +"_on.src");
}

function bOut(image) {
document[image].src = eval(image +"_off.src");
}

b0_off = newImage('images/0_up.jpg');
b0_over = newImage('images/0_over.jpg');
b0_on = newImage('images/0_down.jpg');
b1_off = newImage('images/1_up.jpg');
b1_over = newImage('images/1_over.jpg');
b1_on = newImage('images/1_down.jpg');
b2_off = newImage('images/2_up.jpg');
b2_over = newImage('images/2_over.jpg');
b2_on = newImage('images/2_down.jpg');
b3_off = newImage('images/3_up.jpg');
b3_over = newImage('images/3_over.jpg');
b3_on = newImage('images/3_down.jpg');
b4_off = newImage('images/4_up.jpg');
b4_over = newImage('images/4_over.jpg');
b4_on = newImage('images/4_down.jpg');
b5_off = newImage('images/5_up.jpg');
b5_over = newImage('images/5_over.jpg');
b5_on = newImage('images/5_down.jpg');
b6_off = newImage('images/6_up.jpg');
b6_over = newImage('images/6_over.jpg');
b6_on = newImage('images/6_down.jpg');
b7_off = newImage('images/7_up.jpg');
b7_over = newImage('images/7_over.jpg');
b7_on = newImage('images/7_down.jpg');
b8_off = newImage('images/8_up.jpg');
b8_over = newImage('images/8_over.jpg');
b8_on = newImage('images/8_down.jpg');
b9_off = newImage('images/9_up.jpg');
b9_over = newImage('images/9_over.jpg');
b9_on = newImage('images/9_down.jpg');
b10_off = newImage('images/10_up.jpg');
b10_over = newImage('images/10_over.jpg');
b10_on = newImage('images/10_down.jpg');
b11_off = newImage('images/11_up.jpg');
b11_over = newImage('images/11_over.jpg');
b11_on = newImage('images/11_down.jpg');
b12_off = newImage('images/12_up.jpg');
b12_over = newImage('images/12_over.jpg');
b12_on = newImage('images/12_down.jpg');
b13_off = newImage('images/13_up.jpg');
b13_over = newImage('images/13_over.jpg');
b13_on = newImage('images/13_down.jpg');
b14_off = newImage('images/14_up.jpg');
b14_over = newImage('images/14_over.jpg');
b14_on = newImage('images/14_down.jpg');
b15_off = newImage('images/15_up.jpg');
b15_over = newImage('images/15_over.jpg');
b15_on = newImage('images/15_down.jpg');