ul.topnav {   
    list-style: none;
	padding-top:7px;
    float: right;        
}  
ul.topnav li {
	float: left;
	position: relative; /*--Declare X and Y axis base--*/
}
ul.topnav li a{    
    color: #000000;
	font-weight:bold;
    display: block;   
    text-decoration: none;   
	text-align:left;
	height:25px;
	padding-top:5px;
	padding-left:15px;
	position: relative;
	z-index:90;
} 

ul.topnav li ul.subnav {   
    list-style: none;   
    position: absolute; /*--Important - Keeps subnav from affecting main navigation flow--*/  
    right: 0;
	top: 25px;    
    margin: 0; 
	padding: 0;   
    display: none;   
    width: 120px; 
	z-index:90;
}
ul.topnav li ul.subnav li{   
    margin: 0;
	padding: 0;
    clear: both;   
    width: 120px;
}
li.bg_bo{
	background:url(../images/drop_bg.png) no-repeat;   
	-moz-opacity:0.75;
	opacity:0.75;
	filter:alpha(opacity=75);
	white-space:nowrap;
	position:relative;
	z-index:90;
}
li.bg_nobo{
	position:relative;
	z-index:90;
	background:url(../images/drop_bg_m.png);   
	-moz-opacity:0.75;
	opacity:0.75;
	filter:alpha(opacity=75);
	white-space:nowrap;
	border-bottom:#000000 1px solid;
}
li.bg_bo:hover{
	-moz-opacity:1;
	opacity:1;
	filter:alpha(opacity=100);
}
li.bg_nobo:hover{
	-moz-opacity:1;
	opacity:1;
	filter:alpha(opacity=100);
}