/*
 * 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;
}