a.hoverImg:hover img {
filter:alpha(opacity=70);
opacity:0.7;
}

.btn_box {
	margin-left: 45px;
	}

.Leftbtn {
	float: left;
	}

.Rightbtn {
	margin: 0 0 0 16px;
	float: left;
	}

.clear {
	clear: both;
	}

ul#dl_btn {
	list-style: none;
	}

ul#dl_btn li{
	list-style: none;
	width: 210px;
}

ul#dl_btn a{
	display: block;
	width: 210px;
	height: 39px;
	text-indent: -999px;
	overflow: hidden;
}

a.hoverImg01 {
    background-image: url(../images/a_btn_01.gif) ;
}
a:hover.hoverImg01 {
    background-position:0px -39px;
}

a.hoverImg02 {
    background-image: url(../images/a_btn_02.gif) ;
}
a:hover.hoverImg02 {
    background-position:0px -39px;
}