+(defun gnus-summary-widget-backward (arg)
+ "Move point to the previous field or button in the article.
+With optional ARG, move across that many fields."
+ (interactive "p")
+ (gnus-summary-select-article)
+ (gnus-configure-windows 'article)
+ (select-window (gnus-get-buffer-window gnus-article-buffer))
+ (unless (widget-at (point))
+ (goto-char (point-max)))
+ (widget-backward arg))
+