    /*
     * call-seq:
     *  new(document)
     *
     * Create a new DocumentFragment element on the +document+
     */
    static VALUE new(int argc, VALUE *argv, VALUE klass)
    {
      xmlDocPtr xml_doc;
      VALUE document;
      VALUE rest;

      rb_scan_args(argc, argv, "1*", &document, &rest);

      Data_Get_Struct(document, xmlDoc, xml_doc);

      xmlNodePtr node = xmlNewDocFragment(xml_doc->doc);
      if(node->doc->children)
        node->ns = node->doc->children->ns;

      NOKOGIRI_ROOT_NODE(node);

      VALUE rb_node = Nokogiri_wrap_xml_node(klass, node);
      rb_funcall2(rb_node, rb_intern("initialize"), argc, argv);

      if(rb_block_given_p()) rb_yield(rb_node);

      return rb_node;
    }