.nav {
width:990px;
height:29px;
background:url(../images/nav_bg.gif) repeat-x;
font-size:14px;
font-family:"黑体";
font-weight:bold;

}
.nav A:link {
	color: #2a91d7;
	text-decoration: none;
}
.nav A:visited {
	color: #2a91d7;
	text-decoration: none;
}
.nav A:hover {
	color: #fff;
	text-decoration: none;
}
.nav ul{ margin:0px; padding:0px; height:29px; padding-left:8px;}
.nav li{ 
margin:0px;
padding:0px; 
height:29px; 
display: block; 
width:89px; 
float: left;
text-align:center;
line-height:29px;
}
.nav li A:hover{
background:url(../images/nav_bg_01.gif) no-repeat; 
height:29px; 
display: block; 
width:89px;
margin:0px;
padding:0px; }
.nav_hover { background:url(../images/nav_bg_01.gif) no-repeat; }
.nav_hover A:link{ color:#FFFFFF;}
.nav_hover A:visited { color:#FFFFFF;}