$MainList->page_links( array(
     'block_start' => ' ',
     'block_end' => ' ',
     'block_single' => '',
     'links_format' => '$prev$',
     'prev_text' => '#',
  ) );
 
  $MainList->page_links( array(
     'block_start' => ' ',
     'block_end' => ' ',
     'block_single' => '',
     'links_format' => '$next$',
     'prev_text' => '#',
  ) );