var win = null;
        function NewWindow(mypage, myname, w, h, scroll) {
            LeftPosition = (screen.width) ? (screen.width - w) / 2 : 0;
            TopPosition = (screen.height) ? (screen.height - h) / 2 : 0;
            settings =
'height=' + h + ',width=' + w + ',top=' + TopPosition + ',left=' + LeftPosition + ',scrollbars=' + scroll + ',resizable'
            win = window.open(mypage, myname, settings)
        }