*{margin:0;padding:0;}
#nav {
background: url(../images/navBackImg.jpg) top left no-repeat; width:860px; height:31px;
font-family: arial, 宋体, serif;font-size:12px; text-align:center; margin-left:20px;
}
#nav ul{line-height:31px; list-style-type: none;}
#nav a {
display: block; width: auto; text-align:center; color:#FFF; text-decoration:none; font-weight:bold; font-size:12px; padding:0 16px; line-height:31px;
}
#nav ul a:hover {
color:#FFF; font-weight:bold;
}
#nav ul li {
float: left; background:url(../images/nav-03.jpg) top right no-repeat;
}
#nav ul li a:hover{
background:url(images/navhoverback.gif) bottom center no-repeat;
}
#nav ul li ul {
	line-height:31px;
	list-style-type: none;
	text-align:left;
	left: -999em;
	width: 165px;
	position: absolute;

}
#nav ul li ul li{
float: left; width:197px;
background: #003399 url(../images/navIco.gif) 10px center no-repeat;
filter: Alpha(Opacity=80);
}
#nav ul li ul li a{
display: block; width:165px;text-align:left; text-indent:12px; color:#fff; text-decoration:none; position:relative; border-bottom:1px solid #FFF;	
}
#nav ul li ul li a:hover {
color:#fff;text-decoration:none;/*font-weight:normal;*/
background: #003399 url(../images/navIco.gif) 10px center no-repeat;
}
#nav ul li:hover ul {
left: auto;
}

#nav ul li.sfhover{background:url(../images/nav-03.jpg) bottom right no-repeat; color:#FFF;}

#nav ul li.sfhover a{color:#FFF;}

#nav ul li.sfhover ul {
left: auto;
}

#nav ul li li.sfhover{ background:url(../images/navIco.gif) 10px center no-repeat;color:#FFF;}

#nav ul li li.sfhover a{color:#FFF;}

#nav ul li li.sfhover ul {
left: auto;
}
.a_none{ position:relative;}