a.button {
	background: transparent url(btn/_bg_button_a.gif) no-repeat scroll top right; 
	color: #000; 
	display: block;
	float: left; 
	font-family:arial; 
	font-size: 8pt;
	font-weight:bold;
	height: 24px;
	margin-right: 6px;
	padding-right: 18px;
	text-decoration: none; 
}
a.button span {	
	background: transparent url(btn/_bg_button_span.gif) no-repeat; 
	display: block; 
	line-height: 14px;
	padding: 5px 0 5px 18px;  
	text-decoration:none;
} 
a.button:hover span{
	background-position:0 -24px; 
}
a.button:hover{
	background-position:right -24px; 
}				

.aceptar{		background:url(btn/aceptar.gif)		no-repeat; padding-left:20px; }
.alertar{		background:url(btn/alertar.gif)		no-repeat; padding-left:20px; } 
.cancelar{		background:url(btn/cancelar.gif)	no-repeat; padding-left:20px; }
.izquierda{		background:url(btn/izquierda.gif)	no-repeat; padding-left:20px; }
.derecha{		background:url(btn/derecha.gif)		no-repeat; padding-left:20px; }
.carpeta{		background:url(btn/carpeta.gif)		no-repeat; padding-left:20px; }
.crear{			background:url(btn/crear.gif)		no-repeat; padding-left:20px; } 
.descargar{		background:url(btn/descargar.gif)	no-repeat; padding-left:20px; }
.editar{		background:url(btn/editar.gif) 		no-repeat; padding-left:20px; } 
.escribir{		background:url(btn/escribir.gif)	no-repeat; padding-left:20px; }
.eliminar{		background:url(btn/eliminar.gif)	no-repeat; padding-left:20px; }
.escribir{		background:url(btn/escribir.gif)	no-repeat; padding-left:20px; } 
.guardar{		background:url(btn/guardar.gif)		no-repeat; padding-left:20px; }
.listar{		background:url(btn/listar.gif)		no-repeat; padding-left:20px; } 
.preguntar{		background:url(btn/preguntar.gif)	no-repeat; padding-left:20px; }
.refrescar{		background:url(btn/refrescar.gif)	no-repeat; padding-left:20px; }
.reportes{		background:url(btn/reportes.gif)	no-repeat; padding-left:20px; }
.archivos{		background:url(btn/archivos.gif)	no-repeat; padding-left:20px; }