.preload1 {background: url("../../../images/tntsiteorion/fundomenu.jpg");}
.preload2 {background: url("../../../images/tntsiteorion/fundomenuhover.jpg");}

#nav {padding:0; margin:0; list-style:none; height:37px; 
background:#000 url("../../../images/tntsiteorion/fundomenu.jpg") repeat-x; position:relative; z-index:200; font-family:arial, verdana, sans-serif;
	top: -3px;
	left: 0px;
	width: 444px;
}
#nav li.top {display:block; float:left;}
#nav li a.top_link {display:block; float:left; height:37px; line-height:36px; color:#ccc; text-decoration:none; font-size:11px; padding:0 0 0 7px; cursor:pointer;background: url("../../../images/tntsiteorion/fundomenu.jpg"); z-index:200;}
#nav li a.top_link span {float:left; display:block; padding:0 0px 0 0px; height:37px; background: url("../../../images/tntsiteorion/fundomenu.jpg") right top no-repeat; z-index:200;}
#nav li a.top_link span.down {float:left; display:block; padding:0 7px 0 7px; height:37px; background: url("../../../images/tntsiteorion/fundomenu.jpg") no-repeat right top; z-index:200;}


#nav li:hover a.top_link,
#nav a.top_link:hover
{color:#fff; background: url("../../../images/tntsiteorion/fundomenuhover.jpg") no-repeat; z-index:200;}
#nav li:hover a.top_link span, 
#nav a.top_link:hover span
{background:url("../../../images/tntsiteorion/fundomenuhover.jpg") no-repeat right top; z-index:200;}
#nav li:hover a.top_link span.down,
#nav a.top_link:hover span.down
{background:url("#") no-repeat right top; padding-bottom:0px; z-index:200;}

#nav table {border-collapse:collapse; padding:0; margin:0; position:absolute; left:0; top:0; z-index:200;}

#nav li:hover {position:relative; z-index:200;}
#nav a:hover {position:relative; white-space:normal; z-index:200;}


/* Alteração criada para a Acadêmica */
#nav :hover ul.academico
{left:1px; top:36px; background: #36191d; padding:0; margin:0; border:1px solid #3e4241; width:150px; height:auto; z-index:300;}
#nav :hover ul.academico li
{display:block; height:20px; position:relative; float:left; width:150px; font-weight:normal; border:1px solid #3e4241; z-index:200;}
#nav :hover ul.academico li a
{display:block; font-size:11px; height:20px; width:150px; line-height:18px; text-indent:5px; color:#fff; text-decoration:none;border:0px solid #36191d; z-index:200;}
#nav li ul.academico li a.fly
{background:#36191d url("../imagens/arrow_over.gif") 115px 6px no-repeat; z-index:200;}
#nav :hover ul.academico li a:hover 
{background:#1d1111; color:#847f7c; border-color:#847f7c; z-index:200;}
#nav :hover ul.academico li a.fly:hover
{background:#1d1111 url("../imagens/arrow_over.gif") 120px 6px no-repeat; color:#847f7c; z-index:200;}

/* ************* ************** **** */


#nav li b {display:block; font-size:11px; height:18px; width:115px; line-height:18px; margin-bottom:3px; text-indent:6px; color:#fff; border-bottom:1px solid #fff; cursor:default;  z-index:200;}

#nav a:hover a:hover ul,
#nav a:hover a:hover a:hover ul,
#nav a:hover a:hover a:hover a:hover ul,
#nav a:hover a:hover a:hover a:hover a:hover ul
{left:89px; top:-4px; background: #36191d; padding:0; margin:0; border:1px solid #3e4241; white-space:nowrap; width:90px; z-index:400; height:auto;}

#nav ul, 
#nav a:hover ul ul,
#nav a:hover a:hover ul ul,
#nav a:hover a:hover a:hover ul ul,
#nav a:hover a:hover a:hover a:hover ul ul
{position:absolute; left:-9999px; top:-9999px; width:0; height:0; margin:0; padding:0; list-style:none; z-index:200;}

#nav li:hover li:hover > ul
{left:120px; top:-4px; background: #36191d; padding:3px; border:1px solid #3e4241; white-space:nowrap; width:120px; z-index:400; height:auto;}
#nav li:hover > ul ul 
{position:absolute; left:-9999px; top:-9999px; width:0; height:0; margin:0; padding:0; list-style:none; z-index:200;}
#nav li:hover li:hover > a.fly
{background:#1d1111 url("../imagens/arrow_over.gif") 110px 6px no-repeat; color:#847f7c; border-color:#847f7c;} 
#nav li:hover li:hover > li a.fly
{background:#36191d url("../imagens/arrow.gif") 110px 6px no-repeat; color:#000; border-color:#36191d; z-index:200;} 



<!-- Internos -->

.preloadInterno1 {background: url("../../../images/tntsiteorion/fundomenuInterno.jpg");}
.preloadInterno2 {background: url("../../../images/tntsiteorion/fundomenuhoverInterno.jpg");}

#navInterno {padding:0; margin:0; list-style:none; height:37px; 
position:relative; z-index:200; font-family:arial, verdana, sans-serif;
	top: -3px;
	left: 0px;
	width: 485px;
}
#navInterno li.top {display:block; float:left;}
#navInterno li a.top_link {display:block; float:left; height:36px; line-height:35px; color:#ccc; text-decoration:none; font-size:11px; padding:0 0 0 7px; cursor:pointer;background: url("../../../images/tntsiteorion/fundomenuInterno.jpg"); z-index:200;}
#navInterno li a.top_link span {float:left; display:block; padding:0 0px 0 0px; height:36px; background: url("../../../images/tntsiteorion/fundomenuInterno.jpg") right top no-repeat; z-index:200;}
#navInterno li a.top_link span.down {float:left; display:block; padding:0 7px 0 7px; height:36px; background: url("../../../images/tntsiteorion/fundomenuInterno.jpg") no-repeat right top; z-index:200;}


#navInterno li:hover a.top_link,
#navInterno a.top_link:hover
{color:#fff; background: url("../../../images/tntsiteorion/fundomenuhoverInterno.jpg") no-repeat; z-index:200;}
#navInterno li:hover a.top_link span, 
#navInterno a.top_link:hover span
{background:url("../../../images/tntsiteorion/fundomenuhoverInterno.jpg") no-repeat right top; z-index:200;}
#navInterno li:hover a.top_link span.down,
#navInterno a.top_link:hover span.down
{background:url("#") no-repeat right top; padding-bottom:0px; z-index:200;}

#navInterno table {border-collapse:collapse; padding:0; margin:0; position:absolute; left:0; top:0; z-index:200;}

#navInterno li:hover {position:relative; z-index:200;}
#navInterno a:hover {position:relative; white-space:normal; z-index:200;}


/* Alteração criada para a Acadêmica */
#navInterno :hover ul.academico
{left:1px; top:36px; background: #36191d; padding:0; margin:0; border:1px solid #3e4241; width:150px; height:auto; z-index:300;}
#navInterno :hover ul.academico li
{display:block; height:20px; position:relative; float:left; width:150px; font-weight:normal; border:1px solid #3e4241; z-index:200;}
#navInterno :hover ul.academico li a
{display:block; font-size:11px; height:20px; width:150px; line-height:18px; text-indent:5px; color:#fff; text-decoration:none;border:0px solid #36191d; z-index:200;}
#navInterno li ul.academico li a.fly
{background:#36191d url("../imagens/arrow_over.gif") 115px 6px no-repeat; z-index:200;}
#navInterno :hover ul.academico li a:hover 
{background:#1d1111; color:#847f7c; border-color:#847f7c; z-index:200;}
#navInterno :hover ul.academico li a.fly:hover
{background:#1d1111 url("../imagens/arrow_over.gif") 120px 6px no-repeat; color:#847f7c; z-index:200;}

/* ************* ************** **** */


#navInterno li b {display:block; font-size:11px; height:18px; width:115px; line-height:18px; margin-bottom:3px; text-indent:6px; color:#fff; border-bottom:1px solid #fff; cursor:default;  z-index:200;}

#navInterno a:hover a:hover ul,
#navInterno a:hover a:hover a:hover ul,
#navInterno a:hover a:hover a:hover a:hover ul,
#navInterno a:hover a:hover a:hover a:hover a:hover ul
{left:89px; top:-4px; background: #36191d; padding:0; margin:0; border:1px solid #3e4241; white-space:nowrap; width:90px; z-index:400; height:auto;}

#nav ul, 
#navInterno a:hover ul ul,
#navInterno a:hover a:hover ul ul,
#navInterno a:hover a:hover a:hover ul ul,
#navInterno a:hover a:hover a:hover a:hover ul ul
{position:absolute; left:-9999px; top:-9999px; width:0; height:0; margin:0; padding:0; list-style:none; z-index:200;}

#navInterno li:hover li:hover > ul
{left:120px; top:-4px; background: #36191d; padding:3px; border:1px solid #3e4241; white-space:nowrap; width:120px; z-index:400; height:auto;}
#navInterno li:hover > ul ul 
{position:absolute; left:-9999px; top:-9999px; width:0; height:0; margin:0; padding:0; list-style:none; z-index:200;}
#navInterno li:hover li:hover > a.fly
{background:#1d1111 url("../imagens/arrow_over.gif") 110px 6px no-repeat; color:#847f7c; border-color:#847f7c;} 
#navInterno li:hover li:hover > li a.fly
{background:#36191d url("../imagens/arrow.gif") 110px 6px no-repeat; color:#000; border-color:#36191d; z-index:200;}