#page-top {
	position: fixed;
	bottom: 50px;
	right: 50px;
}
#page-top a {
	background: url(../img/toTop_off.png) no-repeat;
	text-decoration: none;
	width: 100px;
	height: 100px;
	display: block;
}
#page-top a:hover {
	background: url(../img/toTop_on.png) no-repeat;
	text-decoration: none;
	width: 100px;
	height: 100px;
	display: block;
}