<?php
function upload_to_cdn($filename) {
    $username = get_conf('cdn_username');
    $password = get_conf('cdn_password');
    $remote = get_conf('cdn_remote_host');
    $new_path = relpath($filename, get_conf('document_root'));
    ftp_upload($filename, $newpath, $remote, $username, $password);
}
?>