더보기 more jquery

<script>
$(document).ready(function () {
      commentLoad('#bo_vc', '3'); //id, 출력갯수

    $("#loadBtn").click(function(){
      commentLoad('#bo_vc', '3', '#js-btn-wrap');
    });
});
 
function commentLoad(id, cnt, btn) {
    var girls_list = id + " .js-load:not(.active)";
    var girls_length = $(girls_list).length;
    var girls_total_cnt;
    if (cnt < girls_length) {
        girls_total_cnt = cnt;
    } else {
        girls_total_cnt = girls_length;
        $(btn).hide()
    }
    $(girls_list + ":lt(" + girls_total_cnt + ")").addClass("active");
}
</script>

<style>
.js-load {
    display: none;
}
.js-load.active {
    display: block;
}
.is_comp.js-load:after {
    display: none;
}
</style>

<!-- 댓글 시작 { -->
<section id="bo_vc" >
    <h2>댓글목록</h2>
    <?php
    $cmt_amt = count($list);
    for ($i=0; $i<$cmt_amt; $i++) {
        $comment_id = $list[$i]['wr_id'];
        $cmt_depth = ""; // 댓글단계
        $cmt_depth = strlen($list[$i]['wr_comment_reply']) * 20;
        $comment = $list[$i]['content'];
       
        /*
        if (strstr($list[$i]['wr_option'], "secret")) {
            $str = $str;
        }
        */
        $comment = preg_replace("/\[\<a\s.*href\=\"(http|https|ftp|mms)\:\/\/([^[:space:]]+)\.(mp3|wma|wmv|asf|asx|mpg|mpeg)\".*\<\/a\>\]/i", "<script>doc_write(obj_movie('$1://$2.$3'));</script>", $comment);
        $cmt_sv = $cmt_amt - $i + 1; // 댓글 헤더 z-index 재설정 ie8 이하 사이드뷰 겹침 문제 해결
     ?>

    <article id="c_<?php echo $comment_id ?>" <?php if ($cmt_depth) { ?>style="margin-left:<?php echo $cmt_depth ?>px;border-top-color:#e0e0e0"<?php } ?> class="js-load">
        <header style="z-index:<?php echo $cmt_sv; ?>">
            <h1><?php echo get_text($list[$i]['wr_name']); ?>님의 댓글</h1>
            <?php echo $list[$i]['name'] ?>
            <?php if ($cmt_depth) { ?><img src="<?php echo $board_skin_url ?>/img/icon_reply.gif" class="icon_reply" alt="댓글의 댓글"><?php } ?>
            <?php if ($is_ip_view) { ?>
            아이피
            <span class="bo_vc_hdinfo"><?php echo $list[$i]['ip']; ?></span>
            <?php } ?>
            작성일
            <span class="bo_vc_hdinfo"><time datetime="<?php echo date('Y-m-d\TH:i:s+09:00', strtotime($list[$i]['datetime'])) ?>"><?php echo $list[$i]['datetime'] ?></time></span>
            <?php
            include(G5_SNS_PATH.'/view_comment_list.sns.skin.php');
            ?>
        </header>

        <!-- 댓글 출력 -->
        <p>
            <?php if (strstr($list[$i]['wr_option'], "secret")) { ?><img src="<?php echo $board_skin_url; ?>/img/icon_secret.gif" alt="비밀글"><?php } ?>
            <?php echo $comment ?>
        </p>

        <span id="edit_<?php echo $comment_id ?>"></span><!-- 수정 -->
        <span id="reply_<?php echo $comment_id ?>"></span><!-- 답변 -->

        <input type="hidden" value="<?php echo strstr($list[$i]['wr_option'],"secret") ?>" id="secret_comment_<?php echo $comment_id ?>">
        <textarea id="save_comment_<?php echo $comment_id ?>" style="display:none"><?php echo get_text($list[$i]['content1'], 0) ?></textarea>

        <?php if($list[$i]['is_reply'] || $list[$i]['is_edit'] || $list[$i]['is_del']) {
            $query_string = clean_query_string($_SERVER['QUERY_STRING']);

            if($w == 'cu') {
                $sql = " select wr_id, wr_content, mb_id from $write_table where wr_id = '$c_id' and wr_is_comment = '1' ";
                $cmt = sql_fetch($sql);
                if (!($is_admin || ($member['mb_id'] == $cmt['mb_id'] && $cmt['mb_id'])))
                    $cmt['wr_content'] = '';
                $c_wr_content = $cmt['wr_content'];
            }

            $c_reply_href = './board.php?'.$query_string.'&amp;c_id='.$comment_id.'&amp;w=c#bo_vc_w';
            $c_edit_href = './board.php?'.$query_string.'&amp;c_id='.$comment_id.'&amp;w=cu#bo_vc_w';
         ?>
        <footer>
            <ul class="bo_vc_act">
                <?php if ($list[$i]['is_reply']) { ?><li><a href="<?php echo $c_reply_href;  ?>" onclick="comment_box('<?php echo $comment_id ?>', 'c'); return false;">답변</a></li><?php } ?>
                <?php if ($list[$i]['is_edit']) { ?><li><a href="<?php echo $c_edit_href;  ?>" onclick="comment_box('<?php echo $comment_id ?>', 'cu'); return false;">수정</a></li><?php } ?>
                <?php if ($list[$i]['is_del'])  { ?><li><a href="<?php echo $list[$i]['del_link'];  ?>" onclick="return comment_delete();">삭제</a></li><?php } ?>
            </ul>
        </footer>
        <?php } ?>
    </article>
    <?php } ?>
    <?php if ($i == 0) { //댓글이 없다면 ?><p id="bo_vc_empty">등록된 댓글이 없습니다.</p><?php } ?>
</section>
<?php if ($i == 0) : ?>
<div id="js-btn-wrap" class="btn-wrap" style="text-align:center;padding:10px;"><a href="javascript:void(0);" id="loadBtn">더보기</a></div>
<?php endif; ?>