#return_top a {
	-moz-background-clip:border;
	-moz-background-inline-policy:continuous;
	-moz-background-origin:padding;
	background:transparent url(../img/return_top-nl.png) no-repeat scroll left top;
	bottom:15px;
	display:block;
	height:170px;
	position:fixed;
	right:15px;
	width:18px;
}
#return_top a:hover {
	-moz-background-clip:border;
	-moz-background-inline-policy:continuous;
	-moz-background-origin:padding;
	background:transparent url(../img/return_top-nl.png) no-repeat scroll right top;
}