$("#is_public_<%= @attachment.id %>").html("<%= escape_javascript(link_to (@attachment.is_public? ? "公开":"私有"), update_file_dense_attachments_path(:attachmentid=>@attachment.id,:newtype=>(@attachment.is_public? ? 0:1)),
                                                              :remote=>true,:class=>"f_l re_open",:method => :post) %>");
