public function orden($id)
{
$f = VFacturas::find($id);
$tr = $f->tramada;
$lineas = VLinea::where('factura', $id)->get();
$iva = Iva2::find(1);
$view = \View::make('pdf.orden', compact('f', 'lineas', 'iva'))->render();
$pdf = \App::make('dompdf.wrapper');
$pdf->loadHTML($view);
return $pdf->stream('invoice.pdf', array('Attachment' => 1));
}
