#main_menu_nav{
width:979px;
height:36px;
display:block;
float:left;
background:url(01.jpg) repeat-x;
margin:0px auto;}

* html #main_menu_nav{
margin-left:0px;
width:979px;
height:36px;
display:block;
float:left;
background:url(01.jpg) repeat-x;}




#menu_nav, #menu_nav ul{
font-family: Arial, Helvetica, sans-serif;
font-size: 15px;

margin:0;
padding:0;
list-style-type:none;
list-style-position:outside;
position:relative;
line-height:1.5em;
}

#menu_nav a{
font-family: Arial, Helvetica, sans-serif;
font-size: 15px; 

display:block;
padding-top:7px;
text-align:center;
color:#004182;
text-decoration:none;
background-color:#333;
width:138px;
height:29px;
background:url(01.jpg) no-repeat;
border-left:solid 1px #FFFFFF;
}

#menu_nav a:hover{
background:url(01_.jpg);
color:#fff;
}





#menu_nav li{
float:left;
position:relative;
}

#menu_nav ul {
position:absolute;
display:none;
width:12em;
top:36px;
}

#menu_nav li ul a.one{
width:138px;
float:left;
border-left:none;

background:url(01.jpg) no-repeat;
font-size:11px;
font-weight:normal;

}
#menu_nav li ul a.one:hover{
width:138px;
float:left;
background:#0099FF;
font-size:11px;
font-weight:normal;
color:#FFFFFF;
background:url(01_arrow.jpg) right center;
}



#menu_nav li ul a{
width:138px;
float:left;

background:url(01.jpg) no-repeat;
font-size:11px;
font-weight:normal;
border-bottom:solid 1px #FFFFFF;
}
#menu_nav li ul a:hover{
width:138px;
float:left;
background:#0099FF;
font-size:11px;
font-weight:normal;
color:#FFFFFF;
background:url(01_.jpg);
}





#menu_nav ul ul{
top:auto;
}	

#menu_nav li ul ul {
left:138px;
margin:0px 0 0 0px;
}



#menu_nav li:hover ul ul, #menu_nav li:hover ul ul ul, #menu_nav li:hover ul ul ul ul{
display:none;
}
#menu_nav li:hover ul, #menu_nav li li:hover ul, #menu_nav li li li:hover ul, #menu_nav li li li li:hover ul{
display:block;
}
.clear{display:block; clear:both;}

.live-chat
{
	float:left;
	width:120px;
	height:100px;
	position:absolute;
	margin-left:35px;
	margin-top:10px;
}

.lan-tool
{
	margin-right:20px;
}