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');