$sql_para_coche="SELECT id_ruta, nombr FROM ruta WHERE id_ruta IN (SELECT id_ruta FROM tiporuta WHERE id_tipor=12 AND id_ruta=".$id_ruta.");";
$query_para_coche = pg_query($sql_para_coche);
while($row_para_coche = pg_fetch_array($query_para_coche))
{
?>