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

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

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

b0_out = newImage('images/image24.png');
b0_over = newImage('images/imageover24.png');
b1_out = newImage('images/image16.png');
b1_over = newImage('images/imageover16.png');
b2_out = newImage('images/image17.png');
b2_over = newImage('images/imageover17.png');
b3_out = newImage('images/image18.png');
b3_over = newImage('images/imageover18.png');
b4_out = newImage('images/image19.png');
b4_over = newImage('images/imageover19.png');
b5_out = newImage('images/image20.png');
b5_over = newImage('images/imageover20.png');
b6_out = newImage('images/image21.png');
b6_over = newImage('images/imageover21.png');