.bolt {
	background-image: url(on.jpg);
	background-repeat: no-repeat;
	background-position: center center;
	display: block;
	height: 40px;
	width: 40px;
	font-family: tahoma;
	color: #FF9900;
	text-decoration: none;
	font-size: 20px;
	font-weight: bold;
	cursor: pointer;
	cursor: hand;
	text-align: center;
	padding-top: 8px;
}
.bolt:hover {
	background-image: url(off.jpg);
	background-repeat: no-repeat;
	background-position: center center;
	display: block;
}