#nav {padding:0; margin:0; list-style:none; height:21px; position:relative; z-index:500; text-align: left;}
#nav li.top {display:block; float:left;}
#nav li a.top_link {display:block; float:left;color:#fff; text-decoration:none; font-size:11px; font-weight:bold;cursor:pointer;}
#nav li a.top_link span {float:left; display:block; padding:4px 15px 3px 15px;}
#nav li a.top_link span.down {float:left; display:block; padding:4px 24px 0px 15px;}

#nav li:hover a.top_link {color:#fff;}
#nav li:hover a.top_link span {}
#nav li:hover a.top_link span.down {}

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

#nav li:hover ul.sub
{left:0px; top:21px; background: #086594; padding:5px 5px 5px 5px; border:1px solid #fff; white-space:nowrap; width:180px; height:auto; z-index:300;}
#nav li:hover ul.sub li
{display:block; height:25px; position:relative; float:left; width:178px; font-weight:normal;}
#nav li:hover ul.sub li a
{display:block; font-size:11px; height:18px; width:178px; line-height:18px; text-indent:5px; color:#fff; text-decoration:none;border:1px solid #086594;}
#nav li ul.sub li a.fly
{background:#086594 url(arrow.gif) 80px 6px no-repeat;}
#nav li:hover ul.sub li a:hover 
{background:#D6F3FF; color:#000; border-color:#fff;}
#nav li:hover ul.sub li a.fly:hover
{background:#D6F3FF url(arrow_black.gif) 80px 6px no-repeat; color:#000;}


#nav li:hover li:hover ul,
#nav li:hover li:hover li:hover ul,
#nav li:hover li:hover li:hover li:hover ul,
#nav li:hover li:hover li:hover li:hover li:hover ul
{left:90px; top:-4px; background: #086594; padding:3px; border:1px solid #fff; white-space:nowrap; width:90px; z-index:400; height:auto;}

#nav ul, 
#nav li:hover ul ul,
#nav li:hover li:hover ul ul,
#nav li:hover li:hover li:hover ul ul,
#nav li:hover li:hover li:hover li:hover ul ul
{position:absolute; left:-9999px; top:-9999px; width:0; height:0; margin:0; padding:0; list-style:none;}

#nav li:hover li:hover a.fly,
#nav li:hover li:hover li:hover a.fly,
#nav li:hover li:hover li:hover li:hover a.fly,
#nav li:hover li:hover li:hover li:hover li:hover a.fly
{background:#D6F3FF url(arrow_black.gif) 80px 6px no-repeat; color:#000; border-color:#fff;} 

#nav li:hover li:hover li a.fly,
#nav li:hover li:hover li:hover li a.fly,
#nav li:hover li:hover li:hover li:hover li a.fly
{background:#086594 url(arrow.gif) 80px 6px no-repeat; color:#fff; border-color:#086594;}