public function getChild($clave)
 {
     $sql = 'SELECT echd,echd2 FROM h2h_ProgramaOpc WHERE clave = "' . $clave . '"';
     $datos = $this->_db->consulta($sql);
     if ($this->_db->numRows($datos) > 0) {
         $respuesta = $this->_db->fetchAll($datos);
         $CH = new programaDTO();
         foreach ($respuesta as $r) {
             $CH->setChedad1(trim($r['echd']));
             $CH->setChedad2(trim($r['echd2']));
         }
         return $CH;
     }
     return false;
 }