echo navi_button_cell($but_pref.'first', _('First'), $pager->first_page, 'right');
echo navi_button_cell($but_pref.'prev', _('Prev'), $pager->prev_page,'right');
echo navi_button_cell($but_pref.'next', _('Next'), $pager->next_page,'right');
echo navi_button_cell($but_pref.'last', _('Last'), $pager->last_page, 'right');
end_row();
echo navi_button_cell($but_pref.'first', _('First'), $pager->first_page, 'right');
echo navi_button_cell($but_pref.'prev', _('Prev'), $pager->prev_page,'right');
echo navi_button_cell($but_pref.'next', _('Next'), $pager->next_page,'right');
echo navi_button_cell($but_pref.'last', _('Last'), $pager->last_page, 'right');
end_row();