.back {
	background-image: url(img/back_home.jpg);
	background-repeat: repeat-x;
	background-position: top;
}
.back2home {
	background-image: url(img/back_home2.jpg);
	background-repeat: no-repeat;
	background-position: top;
}
.back3home {
	background-image: url(img/back_home3.jpg);
	background-repeat: no-repeat;
	background-position: top;
}

.backpagina {
	background-image: url(img/back_tabella.jpg);
	background-repeat: repeat-y;
	background-position: top;
}
.backinterno {
	background-image: url(img/back_interno.jpg);
	background-repeat: no-repeat;
	background-position: top;
}
.back2interno {
	background-image: url(img/back_interno2.jpg);
	background-repeat: repeat-x;
	background-position: top;
}