t.data[HTML_MIME_TYPE];
      var script_attrs = bk_div.children[0].attributes;
      for (var i = 0; i < script_attrs.length; i++) {
        toinsert[toinsert.length - 1].firstChild.setAttribute(script_attrs[i].name, script_attrs[i].value);
      }
      // store reference to server id on output_area
      output_area._bokeh_server_id = output.metadata[EXEC_MIME_TYPE]["server_id"];
    }
  }

  function register_renderer(events, OutputArea) {

    function append_mime(data, metadata, element) {
      // cr