div.product_top {
	position: relative;
	background: url("../img/main.jpg") 0 0 no-repeat;
	width: 800px;
	height: 415px;
}
div.product_top_navi {
	padding-top: 145px;
}
div.product_top_navi div {
	width: 298px;
	height: 20px;
	margin:0px;
	padding: 0px;
	margin-bottom: 10px;
}
div.product_top_navi div a {
	display: block;
	margin:0px;
	padding: 0px;
	width: 298px;
	height: 20px;
}
div.product_top_navi div.point a { background: url(../img/navi_point.gif) 0 0 no-repeat; }
div.product_top_navi div.base a { background: url(../img/navi_base.gif) 0 0 no-repeat; }
div.product_top_navi div.skin a { background: url(../img/navi_skin.gif) 0 0 no-repeat; }
div.product_top_navi div.model a { background: url(../img/navi_model.gif) 0 0 no-repeat; }
div.product_top_navi div.point a:hover,
div.product_top_navi div.base a:hover,
div.product_top_navi div.skin a:hover,
div.product_top_navi div.model a:hover {
	background-position:0px -20px;
}

.change_navi li { position: absolute; }
.change_navi .navi_01 { left: 438px; top: 353px; }
.change_navi .navi_02 { left: 593px; top: 353px; }

.change_navi a{
	display: block;
	width: 150px;
	height:20px;
}

.change_navi a { background: url(../img/nav_change.gif) 0 0 no-repeat; }

div.nature_blue { background: url("../img/main_blue.jpg") 0 0 no-repeat; }
.nature_blue .change_navi .navi_01 a { background-position: 0 0; }
.nature_blue .change_navi .navi_01 a:hover,
.nature_blue .change_navi .navi_01 a:active { background-position: 0 0; }

.nature_blue .change_navi .navi_02 a { background-position: -150px -20px; }
.nature_blue .change_navi .navi_02 a:hover,
.nature_blue .change_navi .navi_02 a:active { background-position: -150px 0; }

div.nature_beige { background: url("../img/main_beige.jpg") 0 0 no-repeat; }
.nature_beige .change_navi .navi_01 a { background-position: 0 -20px; }
.nature_beige .change_navi .navi_01 a:hover,
.nature_beige .change_navi .navi_01 a:active { background-position: 0 0; }

.nature_beige .change_navi .navi_02 a { background-position: -150px 0; }
.nature_beige .change_navi .navi_02 a:hover,
.nature_beige .change_navi .navi_02 a:active { background-position: -150px 0; }

.hidetxt { text-indent: -9999px; overflow: hidden; }
.hidetxt a { overflow: hidden; }