But now the link `profile.php?u=53&status_id=29&ntfMark=17#socialnet_us` is not longer working?
e.g. if you click on a link in the ajax notify box.

This is what ntf_check_MARK() doing. But is not better if simply call ntf_markID() here with `&ntfMark=17`?
ntf_markID need than only an user_id check and the notification was marked as read.