var parm = centerParms(width, height) + ",width=" + width + ",height=" + height + ",status=yes,scrollbars=yes";
var config = $('#periodic_invoices_config').val();
var parm = centerParms(width, height) + ",width=" + width + ",height=" + height + ",status=yes,scrollbars=yes";
var config = $('#periodic_invoices_config').val();