메뉴바 addclass에 대해 질문이 있어서 올립니다!! 채택완료

<div id="gnb">

        <div class="gnb_side">

            <h2>메인메뉴</h2>

            <ul id="gnb_1dul">

            <?php

            $menu_datas = get_menu_db(1, true);

            $i = 0;

            foreach( $menu_datas as $row ){

                if( empty($row) ) continue;

            ?>

                <li class="gnb_1dli">

                    <a href="<?php echo $row['me_link']; ?>" target="_<?php echo $row['me_target']; ?>" class="gnb_1da"><?php echo $row['me_name'] ?></a>

                   <?php

                    $k = 0;

                    foreach( (array) $row['sub'] as $row2 ){

                        if( empty($row2) ) continue;

 

                        if($k == 0)

                            echo '<button type="button" class="btn_gnb_op"><span class="sound_only">하위분류</span></button><ul class="gnb_2dul">'.PHP_EOL;

                    ?>

                        <li class="gnb_2dli"><a href="<?php echo $row2['me_link']; ?>" target="_<?php echo $row2['me_target']; ?>" class="gnb_2da"><span></span><?php echo $row2['me_name'] ?></a></li>

                    <?php

                    $k++;

                    }   //end foreach $row2

 

                    if($k > 0)

                        echo '</ul>'.PHP_EOL;

                    ?>

                </li>

            <?php

            $i++;

            }   //end foreach $row

 

            if ($i == 0) {  ?>

                <li id="gnb_empty">메뉴 준비 중입니다.<?php if ($is_admin) { ?> <br><a href="<?php echo G5_ADMIN_URL; ?>/menu_list.php">관리자모드 &gt; 환경설정 &gt; 메뉴설정</a>에서 설정하세요.<?php } ?></li>

            <?php } ?>

            </ul>

        </div>

    </div>

if( $_GET["bo_table"]==="free" ){

           $('gnb_1da').addClass("active");

        }else{

           $('gnb_1da').removeClass("active");

       }