<div class="span6">    <div id="r_pag" class="dataTables_length">        <label>            <select size="1" name="r_pag" id="per_page">                <option value="15" <?php if ($this->session->userdata($dir . '_per_page') == 15) echo "selected"; ?>>                    15                </option>                <option value="25" <?php if ($this->session->userdata($dir . '_per_page') == 25) echo "selected"; ?>>                    25                </option>                <option value="50" <?php if ($this->session->userdata($dir . '_per_page') == 50) echo "selected"; ?>>                    50                </option>                <option value="100" <?php if ($this->session->userdata($dir . '_per_page') == 100) echo "selected"; ?>>                    100                </option>            </select>            Resultado por página        </label>    </div></div>