.nav_up{
	padding:7px;
	background-color: #000;
	border:1px solid #CCC;
	position:fixed;
	width:26px;
	height:16px;
	bottom:20px;
	opacity:0.7;
	right:30px;
	white-space:nowrap;
	cursor: pointer;
	-moz-border-radius: 3px 10px 10px 3px;
	-ms-border-radius: 3px 10px 10px 3px;
	-webkit-border-radius: 3px 10px 10px 3px;
    -webkit-border-top-left-radius:3px;
	-webkit-border-top-right-radius:3px;
    -khtml-border-top-left-radius:3px;
	-khtml-border-top-right-radius:3px;
	font-family:"Arial Black", Gadget, sans-serif;
	font-size:12px;
	color: #999;
}
.nav_down{
	padding:7px;
	background-color:#000;
	border:1px solid #CCC;
	position:fixed;
	width:48px;
	height:16px;
	bottom:20px;
	opacity:0.7;
	right:70px;
	white-space:nowrap;
	cursor: pointer;
	-moz-border-radius: 10px 3px 3px 10px;
	-ms-border-radius: 10px 3px 3px 10px;
	-webkit-border-radius: 10px 3px 3px 10px;
    -webkit-border-top-left-radius:3px;
	-webkit-border-top-right-radius:3px;
    -khtml-border-top-left-radius:3px;
	-khtml-border-top-right-radius:3px;
	font-family:"Arial Black", Gadget, sans-serif;
	font-size:12px;
	color: #999;
}