.back001 {
	background-attachment: fixed;
	background-image: url(../images/back001.jpg);
	background-repeat: no-repeat;
	background-position: center top;
}
.back002 {
	background-attachment: fixed;
	background-image: url(../images/docc_6.jpg);
	background-repeat: no-repeat;
	background-position: center center;
}