Ordernar Query -Solucionado-

[TavoRossal]

este es el query completo
$query = "select a.*, b.*, c.name as type from jos153_properties_lightbox a join jos153_properties_products b on a.propid = b.id join jos153_properties_category c on b.parent = c.id where ";
if(isset($_GET["pag"])){
$query.="a.id >=".$_GET["pag"]. " and " ;
}
$query.="a.uid = '".$id."' limit 3";
$db->setQuery($query);
$rows = $db->loadObjectList();