#toTop {
	display: none;
	position: fixed;
	bottom: 20px;
	right: 20px;
	width: 40px;
	height: 40px;
	background-image: url('/image/base/totop.png');
	background-repeat: no-repeat;
	opacity: 0.4;
	filter: alpha(opacity=40); /* For IE8 and earlier */
}
#toTop:hover {
	opacity: 0.9;
	filter: alpha(opacity=90); /* For IE8 and earlier */
}