#navigation .nav_chisiamo { background-image: url(../images/menu_chisiamo.jpg); }
#navigation .nav_valori { background-image: url(../images/menu_valori.jpg); }
#navigation .nav_servizi { background-image: url(../images/menu_servizi.jpg); }
#navigation .nav_news { background-image: url(../images/menu_news.jpg); }
#navigation .nav_nscase { background-image: url(../images/menu_nscase.jpg); }
#navigation .nav_contatti { background-image: url(../images/menu_contatti.jpg); }
#navigation .nav_dovesiamo { background-image: url(../images/menu_dovesiamo.jpg); }
#navigation .nav_lavoraconnoi { background-image: url(../images/menu_lavoraconnoi.jpg); }