func save_multipart_upload(r *http.Request, savepath string) ([]string, error) {
    fmt.Println("CALL: save_multipart_upload(r,"+savepath+")")

    var savedfiles []string

    err := r.ParseMultipartForm(100000)
    if err != nil {
        return savedfiles, err
    }

    m := r.MultipartForm
    fmt.Printf("MPF: %#v n", m)

    for fname, _ := range r.MultipartForm.File {
        files := m.File[fname]
        fmt.Printf("files: %#v n", m)
        for i, _ := range files {
            //for each fileheader, get a handle to the actual file
            file, err := files[i].Open()
            fmt.Printf("file: %#v n", file)
            defer file.Close()
            if err != nil {
                return savedfiles, err
            }
            //create destination file making sure the path is writeable.
            var filename string
            if savepath[:len(savepath)] == "/" {
                filename = savepath + files[i].Filename
            } else {
                filename = savepath + "/" + files[i].Filename
            }
            dst, err := os.Create(filename)
            if err != nil {
                fmt.Println("Can't create "+filename+": "+err.Error())
                return savedfiles, err
            } else if _, err := io.Copy(dst, file); err != nil {
                fmt.Println("Can't copy data %s: "+err.Error(), filename)
                return savedfiles, err
            } else {
                fmt.Println("Saved %s successfully.", filename)
                savedfiles = append(savedfiles, files[i].Filename)
            }
        }
    }
    /* end multipart upload */
    fmt.Println("RETURN: receive_multipart_upload")
    return savedfiles, err
}