.fondo_claro {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 11px;
	color: #333333;
	font-weight: normal;
	background-image: url(images/formularios/claro.gif);
}
.fondo_tabla {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 11px;
	color: #333333;
	background-image: url(images/formularios/fondo_tabla.gif);
}
.fondo_oscuro {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 11px;
	color: #333333;
	background-image: url(images/formularios/oscuro.gif);
}
.fondo_titulo {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 11px;
	color: #333333;
	background-image: url(images/formularios/titulos.gif);
}