my$sth=$dbh->prepare("select * from issues,items,biblioitems,biblio where borrowernumber=$borrowernumber and issues.itemnumber=items.itemnumber and items.biblionumber=biblio.biblionumber and items.biblioitemnumber=biblioitems.biblioitemnumber and returndate is null $crit order by date_due");
my$select="select * from issues,items,biblioitems,biblio where borrowernumber=$borrowernumber and issues.itemnumber=items.itemnumber and items.biblionumber=biblio.biblionumber and items.biblioitemnumber=biblioitems.biblioitemnumber and returndate is null $crit order by date_due";