#menu {
width: 199px;
}

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

#menu a {
display: block;
border: 0;
margin: 0;
}

#menu a {
color: #233c77;
font-family:"Tahoma",Arial;
font-size:13px;
background-image:url('../img/buttons/leftmenu_off.jpg');
text-decoration: none;
text-align:left;
padding: 4px 0px 4px 30px;
}

#menu a:hover {
color: #233c77;
font-family:"Tahoma",Arial;
font-size:13px;
background-image:url('../img/buttons/leftmenu_on.jpg');
text-align:left;
padding: 4px 0px 4px 30px;
}

#menu li {
color: #233c77;
font-family:"Tahoma",Arial;
font-size:16px;
background-image:url('../img/buttons/leftmenu_off.jpg');
text-decoration: none;
text-align:left;
position: relative;
}

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

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

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

<!--[if IE]>
 #menu ul li {float: left; width: 100%;}
</style>
<![endif]-->
<!--[if lt IE 7]>
<style type="text/css" media="screen">
body {
behavior: url(csshover.htc);
font-size: 100%;
} 
#menu ul li {float: left; width: 100%;}
#menu ul li a {height: 1%;} 

#menu a, #menu h2 {
/*font: regular 0.7em/1.4em arial, helvetica, sans-serif;*/
font-family:Tahoma;
font-size:13px;
font-weight:bold;
} 
<![endif]-->