ul#menuNav
{
	margin:10px 0px;
	padding:0;
	background:red;
	list-style-type:none;
	display:block;
}
ul#menuNav li
{
	padding:0;
	margin:2px;
	list-style-type:none;
	float:left;
	display:block;
	width:70px;
	height:66px;
}	
ul#menuNav li a
{
	margin:0 auto;
	display:block;
	width:70px;
	height:66px;
	background-color:none;
	background-repeat:no-repeat;
	background-position:0 0px;
	opacity:0.6;
	
}
ul#menuNav li a#menu_1
{
	background-image:url(../img/menu_1.png) ;
}
ul#menuNav li a#menu_2
{
	background-image:url(../img/menu_2.png) ;
}
ul#menuNav li a#menu_3
{
	background-image:url(../img/menu_3.png) ;
}
ul#menuNav li a#menu_4
{
	background-image:url(../img/menu_4.png) ;
}
ul#menuNav li a#menu_5
{
	background-image:url(../img/menu_5.png) ;
}
ul#menuNav li a#menu_6
{
	background-image:url(../img/menu_6.png) ;
}
ul#menuNav li a#menu_7
{
	background-image:url(../img/menu_7.png) ;
}
ul#menuNav li a#menu_8
{
	background-image:url(../img/menu_8.png) ;
}
ul#menuNav li a:hover
{
	/* background-position:0 -66px; */
	/* opacity:1;*/
}