function inner($posts, $td_column_number = '') {

        $buffy = '';
        $td_block_layout = new td_block_layout();
        $countModules = 0;

        if (!empty($posts)) {
            foreach ($posts as $post) {
                $td_module_11 = new td_module_11($post);

                $buffy .= $td_block_layout->open12(); //added in 010 theme - span 12 doesn't use rows
                    $buffy .= $td_module_11->render($post);
                $buffy .= $td_block_layout->close12();
                $countModules++;
                if ($countModules == 2) {
                    $buffy .= $td_block_layout->open12();
                    $buffy .= td_global_blocks::get_instance('td_block_ad_box')->render(array('spot_id' => 'custom_ad_4'));
                    $buffy .= $td_block_layout->close12();
                }
            }
        }
        $buffy .= $td_block_layout->close_all_tags();
        return $buffy;
    }