#menu_top {
	width: 960px;
	height: 42px;
	text-align: right;
	margin: auto;
	}
	
#menu_top ul {
	margin: 0; 
	padding: 0 0 0 31px;
	list-style-type: none;
	text-align:right;
	height: 42px;
	float: left;
	}

#menu_top li {
	margin: 0;
	padding: 0;
	text-align:left;
	float: left;
	height: 42px;
	}

#menu_top li.home_page a,
#menu_top li.chisiamo a,
#menu_top li.centro a,
#menu_top li.lab a,
#menu_top li.day a,
#menu_top li.medicina a,
#menu_top li.medicina_fet a,
#menu_top li.contatti a,
#menu_top li.faq a
 {
	margin: 0;
	padding: 0;
	text-align:left;
	float: left;
	background: no-repeat top left;
	height: 42px;
	display: block;
	}


#menu_top li.home_page a {background: url(../img/m_home.png); width:58px;}
#menu_top li.chisiamo a {background: url(../img/m_chisiamo.png); width:89px;}
/*#menu_top li.centro a {background: url(../img/m_centro.png); width:169px;}*/
#menu_top li.lab a { background:url(../img/m_lab.png); width:173px;}
#menu_top li.day a {background: url(../img/m_day.png); width:110px;}
#menu_top li.medicina_fet a {background: url(../img/m_medicina_fet.png); width:129px;}
#menu_top li.medicina a {background: url(../img/m_medicina_ripr.png); width:216px;}
#menu_top li.contatti a {background: url(../img/m_contatti.png); width:79px;}
#menu_top li.faq a {background: url(../img/m_faq.png); width:45px;}



#menu_top li.home_page a:hover,
#menu_top li.chisiamo a:hover,
#menu_top li.centro a:hover,
#menu_top li.lab a:hover,
#menu_top li.day a:hover,
#menu_top li.medicina a:hover,
#menu_top li.medicina_fet a:hover,
#menu_top li.contatti a:hover,
#menu_top li.faq a:hover {
	background-position: bottom;}

#menu_top span {display:none}