case 'MostarBotones':
include "partes/botonesABM.php";
break;
case 'MostrarGrilla':
include "partes/formGrilla.php";
break;
case 'MostarLogin':
include "partes/formLogin.php";
break;
case 'MostrarFormAlta':
include "partes/formCd.php";
break;
case 'BorrarCD':
$cd = new cd();
$cd->id = $_POST['id'];
$cantidad = $cd->BorrarCd();
echo $cantidad;
break;
case 'GuardarCD':
$cd = new cd();
$cd->id = $_POST['id'];
$cd->cantante = $_POST['cantante'];
$cd->titulo = $_POST['titulo'];
$cd->año = $_POST['anio'];
$cantidad = $cd->GuardarCD();
echo $cantidad;
break;
case 'TraerCD':
$cd = cd::TraerUnCd($_POST['id']);
echo json_encode($cd);
break;
