#nav {padding:0; 
margin:0; 
list-style:none;
position:relative;
z-index:500; 
font-family:arial,verdana, sans-serif;
width:700px;
left: 24px;
}
#nav li.top {display:block; float:left;width:120px}
#nav li a.top_link {display:block; float:left;width:120px; position:relative;height:36px; line-height:27px; color:#fff; text-decoration:none; font-size:13px; font-weight:bold; padding:0; cursor:pointer;background: url("../images/1.png");}
#nav li a.top_link span { display:block; vertical-align:middle;padding-top:10px;margin:0; height:36px;background:url("../images/3.png") no-repeat }
#nav li a.top_link span.down {display:block; padding-top:10px;margin:0; height:auto; background:url("../images/3.png") no-repeat }
#nav li a.top_link:hover {color:#fff; background: url("../images/2.png") no-repeat;}
#nav li a.top_link:hover span {background:url("../images/2.png") no-repeat}
#nav li a.top_link:hover span.down {background:url("../images/3.png") no-repeat}

#nav li:hover > a.top_link {color:#fff; background: url("../images/2.png") no-repeat}
#nav li:hover > a.top_link span {background:url("../images/2.png") no-repeat }
#nav li:hover > a.top_link span.down {background:url("../images/2.png") no-repeat}

/* Default list styling */

#nav li:hover {position:relative; z-index:200;}

/* keep the 'next' level invisible by placing it off screen. */
#nav ul, 
#nav li:hover ul ul,
#nav li:hover ul li:hover ul ul,
#nav li:hover ul li:hover ul li:hover ul ul,
#nav li:hover ul li:hover ul li:hover ul li:hover ul ul
{position:absolute; left:-9999px; top:-9999px; width:0; height:0; margin:0; padding:0; list-style:none;}

#nav li:hover ul.sub
{left:2px; top:35px; background: url("../images/4.png");text-align:left; padding:3px;border:1px #cf4700 solid; white-space:nowrap; width:230px; height:auto; z-index:300;}
#nav li:hover ul.sub li
{display:block; height:auto; position:relative; float:left; width:225px; line-height:25px; }
#nav li:hover ul.sub li a
{display:block; font-size:12px; height:auto; width:225px; line-height:25px; text-indent:5px; color:#FFF; font-size:13px;text-decoration:none;padding-right:3px}
#nav li:hover ul.sub li a span
{width:230px;line-height:17px; height:36px;display:block;}
#nav li ul.sub li a.fly
{background:#fff url("../images/arrow.gif") 80px 7px no-repeat;}
#nav li:hover ul.sub li a:hover 
{background:url("../images/5.png"); color:#000;border:1pt #b94a00 solid;}
#nav li:hover ul.sub li a.fly:hover
{background:#3a93d2 url("../images/arrow_over.gif") 80px 7px no-repeat; color:#fff;}
#nav li:hover ul.sub li a span.topic{
color:#ff0000;
}
#nav li:hover ul li:hover > a.fly {background:#3a93d2 url("../images/arrow_over.gif") 80px 7px no-repeat; color:#fff;} 

#nav li:hover ul li:hover ul,
#nav li:hover ul li:hover ul li:hover ul,
#nav li:hover ul li:hover ul li:hover ul li:hover ul,
#nav li:hover ul li:hover ul li:hover ul li:hover ul li:hover ul
{left:90px; top:-4px; background: #fff; padding:3px; border:1px solid #3a93d2; white-space:nowrap; width:150px; z-index:400; height:auto;}