.nav_up{
	padding:7px;
	background-color:white;
	position:fixed;
	background:transparent url(../images/arrow_up_alt1_32x32.png)/*tpa=../images/arrow_up_alt1_32x32.png*/ no-repeat top left;
	background-position:50% 50%;
	width:40px;
	height:40px;
	bottom:50px;
	opacity:0.1;
	right: 1.5%;
	white-space:nowrap;
	cursor: pointer;
	-moz-border-radius: 3px 3px 3px 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;
	filter:progid:DXImageTransform.Microsoft.Alpha(opacity=10);
	-webkit-transition: all 0.3s ease-in-out;
	-moz-transition: all 0.3s ease-in-out;
	-o-transition: all 0.3s ease-in-out;
	transition: all 0.3s ease-in-out;
}
.nav_down{
	padding:7px;
	background-color:white;
	position:fixed;
	background:transparent url(../images/arrow_down_alt1_32x32.png)/*tpa=../images/arrow_down_alt1_32x32.png*/ no-repeat top left;
	background-position:50% 50%;
	width:40px;
	height:40px;
	bottom:15px;
	opacity:0.1;
	right:1.5%;
	white-space:nowrap;
	cursor: pointer;
	-moz-border-radius: 3px 3px 3px 3px;
	-webkit-border-bottom-left-radius:3px;
	-webkit-border-bottom-right-radius:3px;
	-khtml-border-bottom-left-radius:3px;
	-khtml-border-bottom-right-radius:3px;
	filter:progid:DXImageTransform.Microsoft.Alpha(opacity=10);
	-webkit-transition: all 0.3s ease-in-out;
	-moz-transition: all 0.3s ease-in-out;
	-o-transition: all 0.3s ease-in-out;
	transition: all 0.3s ease-in-out;
}
.nav_up:hover{
	background-position:50% 50%;
	opacity:1;
	-webkit-transition-delay:0;
	-moz-transition-delay:0;
	-o-transition-delay:0;
	transition-delay:0;
}
.nav_down:hover{
	background-position:50% 50%;
	opacity:1;
	-webkit-transition-delay:0;
	-moz-transition-delay:0;
	-o-transition-delay:0;
	transition-delay:0;
}