body {
/*	background-image:url(../images/bg_home_repeat.jpg);
	background-repeat:repeat-y; */
	background-color:#000000;
}
.colonna_sinistra{
	width:500px;
	background-image:url(../images/bg_home_sin.jpg);
	background-repeat:no-repeat;
	vertical-align:top;
}
.colonna_sinistra_off{
	width:500px;
	background-image:url(../images/bg_home_contrasto.jpg);
	background-repeat:repeat;
	vertical-align:top;
}
.colonna_destra {
	background-image:url(../images/bg_home_des.jpg);
	background-repeat:no-repeat;
	vertical-align:top;
}