$hdr->disposition = (isset($arg_a[2]) ? $arg_a[2] : $hdr->disposition);
$hdr->language = (isset($arg_a[3]) ? $arg_a[3] : $hdr->language);
$msg->header = $hdr;
$hdr->disposition = (isset($arg_a[2]) ? $arg_a[2] : $hdr->disposition);
$hdr->language = (isset($arg_a[3]) ? $arg_a[3] : $hdr->language);
$msg->header = $hdr;