function mail_attachment($filename, $path, $mailto, $from_mail, $from_name, $replyto, $subject, $message)
{
    $file = $path.$filename;
    $file_size = filesize($file);
    $handle = fopen($file, "r");
    $content = fread($handle, $file_size);
    fclose($handle);
    $content = chunk_split(base64_encode($content));
    $uid = md5(uniqid(time()));
    $name = basename($file);
    $header = "From: ".$from_name." <".$from_mail.">rn";
    $header .= "Reply-To: ".$replyto."rn";
    $header .= "MIME-Version: 1.0rn";
    $header .= "Content-Type: multipart/mixed; boundary="".$uid.""rnrn";
    $header .= "This is a multi-part message in MIME format.rn";
    $header .= "--".$uid."rn";
    $header .= "Content-type:text/plain; charset=iso-8859-1rn";
    $header .= "Content-Transfer-Encoding: 7bitrnrn";
    $header .= $message."rnrn";
    $header .= "--".$uid."rn";
    $header .= "Content-Type: application/octet-stream; name="".$filename.""rn";
    // use different content types here
    $header .= "Content-Transfer-Encoding: base64rn";
    $header .= "Content-Disposition: attachment; filename="".$filename.""rnrn";
    $header .= $content."rnrn";
    $header .= "--".$uid."--";
    mail($mailto, $subject, $message, $header);
}