ul,li{
	margin:0;
	padding:0;
}

#navi{
	width:800px;
	height:30px;
	margin:0;
	padding-top:20px;
}

#navi li{
	float:left;
	width:100px;
	height:30px;
}
 
#navi a{
	width:100px;
	height:30px;
	display:block;
}

#navi a img{
	visibility: hidden;
	text-decoration: none;
}

#navi li.aaa a{
	background-image:url(../img/a.jpg);
	background-position: left top;
	background-repeat: no-repeat;
}

#navi li.aaa a:hover{
	background-image:url(../img/a_over.jpg);
	background-position: left top;
	background-repeat: no-repeat;
}

#navi li.iii a{
	background-image:url(../img/i.jpg);
	background-position: left top;
	background-repeat: no-repeat;
}

#navi li.iii a:hover{
	background-image:url(../img/i_over.jpg);
	background-position: left top;
	background-repeat: no-repeat;
}

#navi li.uuu a{
	background-image:url(../img/u.jpg);
	background-position: left top;
	background-repeat: no-repeat;
}

#navi li.uuu a:hover{
	background-image:url(../img/u_over.jpg);
	background-position: left top;
	background-repeat: no-repeat;
}

#navi li.eee a{
	background-image:url(../img/e.jpg);
	background-position: left top;
	background-repeat: no-repeat;
}

#navi li.eee a:hover{
	background-image:url(../img/e_over.jpg);
	background-position: left top;
	background-repeat: no-repeat;
}

#navi li.ooo a{
	background-image:url(../img/o.jpg);
	background-position: left top;
	background-repeat: no-repeat;
}

#navi li.ooo a:hover{
	background-image:url(../img/o_over.jpg);
	background-position: left top;
	background-repeat: no-repeat;
}