= now() or hasta is null ) ;";
$result = mysql_db_query ($db_nombre, $query, $link);
$exist = mysql_num_rows($result);
if ($exist>0)
{
$result_sub = mysql_db_query ($db_nombre, "select * from adj_categorias where id_categoria = ".$id_entrada." ;", $link);
if($row_sub = mysql_fetch_array ($result_sub)) {
$titu = $row_sub[desc_corta];
} else {
$titu = "" ;
}
?>