* {
	marign:0;
	padding:0
}
.clear{clear:both;height:0;overflow:hidden}
/*basic menu styling*/ 
#top_button {
	border:none;
	cellpadding:0;
	cellspacing:0;
	width:923px;
	margin-right: auto;
	margin-left: auto;
	background:url("images/top_button_bg.jpg"/*tpa=http://www.exao.com.cn/l_img/top_button_bg.jpg*/) repeat-x;
	height:35px;
	list-style: none;
	text-align: center;
}
.navmenu {
	font-family: "Trebuchet MS", arial, verdana, sans-serif;
	font-size:9pt;
	height:31px;
	padding-top:4px;
padding-left:2px;
}
.navmenu ul {
	padding:0;
	margin:0;
	list-style-type:none;
	
}
.navmenu ul li {
	float:left;
	display:inline;
	width:auto;
	
}
.navmenu ul li#shu {
	background-color: #E0E0E0;
	float: left;
	width: 1px;
	height: 14px;
	margin-top:11px;
}
/*style of main items normal state*/
.navmenu ul li a, .menu ul li a:visited {
	float:left;
	display:block;
	text-decoration:none;
	color:#666;
	padding:0 20px;
	line-height:31px;
	font-weight:bold;
	border-bottom-width: 1px;
	border-bottom-style: solid;
	border-bottom-color: #ffffff;
}
.navmenu ul li a:hover {
	float:left;
	color:#333333;
	background-color:#FAFAFA;
	border-bottom-width: 1px;
	border-bottom-style: solid;
	border-bottom-color: #E1E1E1;
	display:block;
}