Menu desplegable

[pato12]

Hola,
Encontre un codigo de un menu desplegable en google y no me anda cuando esta trasparente:

Código HTML:

<style type="text/css">
<!--
ul#menu-h {
  margin: 0;
  border: 0 none;
  padding: 0;
  width: 500px; /*For KHTML*/
  list-style: none;
  height: 24px;
}

ul#menu-h li {
  margin: 0;
  border: 0 none;
  padding: 0;
  float: left; /*For Gecko*/
  display: inline;
  list-style: none;
  position: relative;
  height: 24px;
}

ul#menu-h ul {
  margin: 0;
  border: 0 none;
  padding: 0;
  width: 160px;
  list-style: none;
  display: none;
  position: absolute;
  top: 24px;
  left: 0;
}

ul#menu-h ul:after /*From IE 7 lack of compliance*/{
  clear: both;
  display: block;
  font: 1px/0px serif;
  content: ".";
  height: 0;
  visibility: hidden;
}

ul#menu-h ul li {
  width: 160px;
  float: left; /*For IE 7 lack of compliance*/
  display: block !important;
  display: inline; /*For IE*/
}


ul#menu-h a {
	padding: 0 6px;
	float: none !important; /*For Opera*/
	float: left; /*For IE*/
	display: block;
	color: #FFFFFF;
	text-decoration: none;
	height: auto !important;
	height: 1%; /*For IE*/
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 10px;
	line-height: 24px;
	font-weight: bold;
}

ul#menu-h a:hover {
	color: #FFFFFF;
	text-decoration: none;
	background-color: #003366;
	background-image: url(images/menu/extend.jpg);
	background-repeat: repeat-x;
}
ul#menu-h li:hover a,
ul#menu-h li.iehover a{
	color: #FFFFFF;
	text-decoration: none;
	background-color: #003366;
}

ul#menu-h li.iehover li a {
	float: none;
	color: #000000;
	background-color: #003366;
	background-repeat: repeat-x;
	background-position: left;
}
ul#menu-h li:hover li a{
	float: none;
	color: #FFFFFF;
	background-color: #003366;
	background-repeat: repeat-x;
	background-position: left;
}


ul#menu-h li:hover li a:hover,
ul#menu-h li:hover li:hover a,
ul#menu-h li.iehover li a:hover,
ul#menu-h li.iehover li.iehover a {
	color: #FFFFFF;
	text-decoration: none;
	background-color: #305CA7;
	background-image: url(images/menu/extend.jpg);
}
ul#menu-h li:hover li:hover li a,
ul#menu-h li.iehover li.iehover li a {
  background: #004993;
  color: #FFFFFF;
}
ul#menu-h li:hover li:hover li a:hover,
ul#menu-h li:hover li:hover li:hover a,
ul#menu-h li.iehover li.iehover li a:hover,
ul#menu-h li.iehover li.iehover li.iehover a {
	background: #305CA7;
	color: #FFFFFF;
	background-image: url(images/menu/li_act.jpg);
	background-repeat: repeat-x;
	background-position: left;
}

ul#menu-h li:hover li:hover li:hover li a,
ul#menu-h li.iehover li.iehover li.iehover li a {
  background: #004993;
  color: #ffffff;
}

ul#menu-h li:hover li:hover li:hover li a:hover,
ul#menu-h li.iehover li.iehover li.iehover li a:hover {
	color: #FFFFFF;
	background-color: #003366;
	background-image: url(images/menu/li_act.jpg);
	background-repeat: repeat-x;
	background-position: left;
}

ul#menu-h ul ul,
ul#menu-h ul ul ul {
  display: none;
  position: absolute;
  top: 0;
  left: 160px;
}
ul#menu-h li li,
ul#menu-h li li li{
filter:Alpha(opacity=90,finishopacity=90,style=1);
}
ul#menu-h li:hover ul ul,
ul#menu-h li:hover ul ul ul,
ul#menu-h li.iehover ul ul,
ul#menu-h li.iehover ul ul ul {
  display: none;
}
ul#menu-h li:hover ul,
ul#menu-h ul li:hover ul,
ul#menu-h ul ul li:hover ul,
ul#menu-h li.iehover ul,
ul#menu-h ul li.iehover ul,
ul#menu-h ul ul li.iehover ul {
  display: block;
}
-->
</style><script>
navHover = function() {
	var lis = document.getElementById("menu-h").getElementsByTagName("LI");
	for (var i=0; i<lis.length; i++) {
		lis[i].onmouseover=function() {
			this.className+=" iehover";
		}
		lis[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" iehover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", navHover);
</script><ul id="menu-h"> 
<li><a href="#">Inicio</a></li> 
<li><a href="#">Mi cuenta ▼</a>
<ul> 
<li><a href="#">Registrarse</a></li> 
<li><a href="#">Logearse »</a>
<ul> 
<li><a href="#">Olvide mi clave</a></li> 
</ul>
</li> 
</ul>
</li> 
<li><a href="#">Contacto</a></li> 
</ul> 

Puede desplegar solo una ves, pero no me despliega el Olvide mi clave.
Gracias
Salu2