def render_tbody
      if @lines and @lines.size > 0
        return Tools::html_safe(content_tag(:tbody, render_total_entries + Tools::html_safe(@lines.collect { |line| line.render_line }.join)))
        return Tools::html_safe(content_tag(:tr, content_tag(:td, I18n.t(:total_entries, :scope => :sorting_table_for, :value => total_entries), {:colspan => max_cells}), { :class => 'total-entries' }))
      end
      ''
    end
def render_tbody
      if @lines and @lines.size > 0
        return Tools::html_safe(content_tag(:tbody, render_total_entries + Tools::html_safe(@lines.collect { |line| line.render_line }.join)))
        return Tools::html_safe(content_tag(:tr, content_tag(:td, I18n.t(:total_entries, :scope => :sorting_table_for, :value => total_entries), {:colspan => max_cells}), { :class => 'total-entries' }))
      end
      ''
    end
Return the balise tbody and its content