a.button {
	cursor:pointer; 
	cursor:hand;
	font:bold 12px Arial;
	color:#ffffff;
	text-decoration:none;
	line-height:27px;
	height:30px;
	background:url(../images/system/btn.gif) no-repeat right top; 
	padding-right:20px; 
	display:inline-block;
}

a.button span { 
	background:url(../images/system/btn.gif) no-repeat left top; 
	height:30px;
	line-height:28px;
	display:inline-block;
	padding-left:20px;
}

a.button:hover {background-position:right -60px;}
a.button:hover span {background-position:left -60px;}