.unnamed1 {
	background-attachment: fixed;
	background-image: url(images/viewpresentaz04.jpg);
	background-repeat: no-repeat;
	background-position: left top;
}
.unnamed3 {
	background-attachment: fixed;
	background-image: url(images/viewpresentaz02.jpg);
	background-repeat: no-repeat;
	background-position: left top;
}
.unnamed4 {
	background-attachment: fixed;
	background-image: url(images/testosx01.jpg);
	background-repeat: no-repeat;
	background-position: left top;
}