def render_articles_by_date(articles)

    s = ""
    year = ""
    month = ""
    year_started = false
    month_started = false

    s = s + "<div id='archive'>"

    for article in articles
      #
      if year != article.created_at.year.to_s then
        if year_started then
          if month_started then
            s = s + "</ul>"
          end
          s = s + "</li>"
          s = s + "</ul>"
        end
        year_started = true
        month_started = false
        year = article.created_at.year.to_s
        s = s + "<h2>" + year + "</h2>"
        s = s + "<ul>"
        s = s + "<li>"
      end
      #
      if month != article.created_at.month.to_s then
        if month_started then
          s = s + "</ul>"
        end
        month_started = true
        month = article.created_at.month.to_s
        s = s + "<h3>" + article.created_at.strftime("%B") + "</h3>"
        s = s + "<ul>"
      end
      #
      s = s + "<li>"
      #
      s = s + get_article_bullet(article.article_type)
      #
      s = s + article.created_at.day.to_s + "<sup>" + get_day_suffix(article.created_at.day) + "</sup> "
      if article.project.id > 1 then
        s = s + article.project.name + ": "
      end
      s = s + link_to_article(article)
      s = s + "</li>"
    end
    #
    if month_started then
      s = s + "</ul>"
    end
    if year_started then
      s = s + "</li>"
      s = s + "</ul>"
    end
    #
    s = s + "</div>"
    return s
  end