a:link {
	background-image: url(boton1.jpg);
	background-repeat: no-repeat;
	text-align: center;
	display: block;
	height: 37px;
	width: 112px;
	line-height: 33px;
	font-size: 24px;
}
a:visited {
	background-image: url(boton1.jpg);
	background-repeat: no-repeat;
	text-align: center;
	display: block;
	height: 37px;
	width: 112px;
	font-size: 24px;
	line-height: 33px;
}
a:hover {
	background-image: url(boton2.jpg);
	background-repeat: no-repeat;
	text-align: center;
	display: block;
	height: 37px;
	width: 112px;
	font-size: 24px;
	line-height: 33px;
}