.top {
	background-attachment: fixed;
	background-image: url(images/front/product_top.jpg);
	background-repeat: no-repeat;
	background-position: left;
}
.bottom {
	background-attachment: fixed;
	background-image: url(images/front/product_bottom.jpg);
	background-repeat: no-repeat;
	background-position: left;
}