<!--
janela = null;
        function calc(a,adesign)
        {
        janela=window.open(a,'adesign', 'height=298,width=680,menu=1,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no,left=20,top=20')
        }
        // -->