.menu{
	font-size:12px;
	position:relative;
	z-index:210;
	clear: both;
	display: block;
	height: 58px;
}   
.menu ul{
	list-style:none;
	padding-left: 9px;
	padding-top: 5px;
}   
.menu li {
	float:left;
	position:relative;
	padding-right: 4px;
}   
.menu ul li ul {
	visibility:hidden;
	position:absolute;
	margin-top: 2px;
	margin-right: 0px;
	margin-bottom: 0px;
	margin-left: -4px;
	top:31px;
	display: block;
	padding: 0px;
}   
* html .menu ul li ul {
	margin-left: -7px;
}
.menu table {position:absolute; top:0; left:0;}   
.menu ul li:hover ul,   
.menu ul li a:hover ul{visibility:visible;}   
.menu ul li a{
	display:block;
	color:#999;
	text-decoration:none;
	height: 26px;
	width: 137px;
	padding-top: 2px;
	padding-right: 10px;
	padding-bottom: 2px;
	padding-left: 12px;
	border-bottom-width: 4px;
	border-bottom-style: solid;
	border-bottom-color: #252525;
}   
.menu ul li a:hover{
	color:#000;
	background-position: left 30px;
}   
  
.menu ul ul li {
	clear:both;
	text-align:left;
	font-size:12px;
	margin: 0px;
	padding: 0px;
}   
.menu ul ul li a{
	display:block;
	width:135px;
	height:16px;
	border-right-width: 4px;
	border-bottom-width: 4px;
	border-left-width: 5px;
	border-right-style: solid;
	border-bottom-style: solid;
	border-left-style: solid;
	border-right-color: #242524;
	border-bottom-color: #242524;
	border-left-color: #242524;
	background-color: #444;
	padding-top: 6px;
	line-height: 12px;
}   
.menu ul ul li a:hover{
	background-color: #BD2B54;
	color: #FFFFFF;
} 
#nav_1 {
	background-image: url(../images/nav_btn/news.jpg);
	text-indent: -9999px;
}
#nav_2 {
	background-image: url(../images/nav_btn/about_us.jpg);
	text-indent: -9999px;
}
#nav_3 {
	background-image: url(../images/nav_btn/e_bussiness.jpg);
	text-indent: -9999px;
}
#nav_4 {
	background-image: url(../images/nav_btn/client.jpg);
	text-indent: -9999px;
}
#nav_5 {
	background-image: url(../images/nav_btn/server.jpg);
	text-indent: -9999px;
}
#nav_6 {
	background-image: url(../images/nav_btn/teach.jpg);
	text-indent: -9999px;
}