#menu {
float: right;
font:  12px helvetica, arial, sans-serif;
}

#menu ul {
list-style: none;
margin: 0;
padding: 0;
float: right;
}

#menu a {
line-height:15px;
display: block;
margin: 0;
padding: 2px 3px;
color: #fff;
background-image:url(../immagini/trasparenza.png);
text-decoration: none;
border-right:1px solid #fff;
}

#menu a:hover {
color: #000;
background: #fff;
}

#menu li {position: relative;}

#menu li:hover > a {
border-right:1px solid #fff;
background:#fff; 
color:#000;
}

#menu ul ul {
position: relative;
z-index: 500;
}

#menu ul ul ul {
position: absolute;
top: 0;
right: 100%;
}

div#menu ul ul,
div#menu ul li:hover ul ul,
div#menu ul ul li:hover ul ul
{display: none;}

div#menu ul li:hover ul,
div#menu ul ul li:hover ul,
div#menu ul ul ul li:hover ul
{display: block;}