nav ul {
	position:absolute;
	top:122px;
	width:150px;
	padding:1em 0;
	background:#000080;

	left:1px;
	z-index:5;
}
nav ul {
	padding:0;
	margin:0;
	width:150px;
}
nav ul li {
	position:relative; 
	list-style-type:none; 
	display:block;
	width:100%;
}
nav a:hover, nav a:active, nav a:focus {
	background:#eee;
	color:#000080;
}
nav ul li.sub a, nav ul li.sub ul li.sub a {
	background:url('../img/rarrow1.gif') right center no-repeat;
}
nav ul li.sub a:hover, nav ul li.sub ul li.sub a:hover,
nav ul li.sub a:active, nav ul li.sub ul li.sub a:active,
nav ul li.sub a:focus, nav ul li.sub ul li.sub a:focus {
	color:#000080;
	background:#eee url('../img/rarrow2.gif') right center no-repeat;
}
nav ul li.sub li a, nav ul li.sub li a:hover, /*Undermenu til niveau1*/
nav ul li.sub ul li.sub li a, nav ul li.sub ul li.sub li a:hover /*Undermenu til niveau2*/
{ /* De-aktiverer pil i undermenu ved mouse-over */
	background-image:none;
}
nav a:link, nav a:visited {
	background:#000080;
	color:#d9d9d9;
}
* nav a {
	padding:5px 8px;
	display:block;
	text-decoration:none;
}
nav ul>ul a {
	width:150px;
	vertical-align:bottom;
}
nav ul ul {top:0;}
nav ul ul ul {top:-1px;}
nav ul ul, nav ul ul ul {
	top:0;
	position:absolute;
	left:100%;
	display:none;
	background-color:#000080;
	width:170px;
}
nav ul.niveau1 li.sub:hover ul.niveau2, nav ul.niveau2 li.sub:hover ul.niveau3,
nav ul.niveau1 li.sub a:focus ul.niveau2, nav ul.niveau2 li.sub a:focus ul.niveau3,
nav ul.niveau1 li.sub a:active ul.niveau2, nav ul.niveau2 li.sub a:active ul.niveau3 {
  display:block;
}
ul.niveau2, ul.niveau3 {
	border-width:1px 1px 1px 0;
	border-color:#000;
	border-style:solid;
	border-collapse:collapse;
}

/***** UNDERMENU - MATEMATIK-SIDEN *****/
nav#subMenu a {
	width: 150px;
	margin: 0 5px 0 0;
	padding: 3px 0;
	display: inline-block;
	text-align: center;
}
nav#subMenu a:link, nav#subMenu:visited {
	background:#000080;
	color:#d9d9d9;
	border: solid 1px #000080;
}
nav#subMenu a:hover, nav#subMenu a:active, nav#subMenu a:focus {
	background:#eee;
	color:#000080;
	border: solid 1px #000;
}