#casita a {
	background-image: url(boton1.png);
	display: block;
	height: 40px;
	width: 78px;
}
#casita a:hover {
	background-image: url(boton2.png);
}
td a {
	color: #000;
}
td a:visited {
	color: #6F17BD;
	text-align: left;
	font-size: 11pt;
}
img[usemap], map area[shape]{
    outline-style: none;
}