그누원본의 페이징 함수를 끌어다 적용 한겁니다.
lib/common.lib.php

// 현재페이지, 총페이지수, 한페이지에 보여줄 행, URL
function get_paging($write_pages, $cur_page, $total_page, $url, $add="")
{
    $str = "";
    if ($cur_page > 1) {
        $str .= "<a href='" . $url . "1{$add}'>처음</a>";
        //$str .= "[<a href='" . $url . ($cur_page-1) . "'>이전</a>]";
    }

    $start_page = ( ( (int)( ($cur_page - 1 ) / $write_pages ) ) * $write_pages ) + 1;
    $end_page = $start_page + $write_pages - 1;

    if ($end_page >= $total_page) $end_page = $total_page;

    if ($start_page > 1) $str .= " &nbsp;<a href='" . $url . ($start_page-1) . "{$add}'>이전</a>";

    if ($total_page > 1) {
        for ($k=$start_page;$k<=$end_page;$k++) {
            if ($cur_page != $k)
                $str .= " &nbsp;<a href='$url$k{$add}'><span>$k</span></a>";
            else
                $str .= " &nbsp;<b>$k</b> ";
        }
    }
    if ($total_page > $end_page) $str .= " &nbsp;<a href='" . $url . ($end_page+1) . "{$add}'>다음</a>";

    if ($cur_page < $total_page) {
        //$str .= "[<a href='$url" . ($cur_page+1) . "'>다음</a>]";
        $str .= " &nbsp;<a href='$url$total_page{$add}'>맨끝</a>";
    }
    $str .= "";

    return $str;
}