2007-12-14 めも multipartのうp http://vivamikan.net/wiki/wiki.cgi?page=RubyDe%A5%D5%A5%A1%A5%A4%A5%EB%A5%A2%A5%C3%A5%D7%A5%ED%A1%BC%A5%C9 REXML http://www.nslabs.jp/ruby-rexml.rhtml