게시판 글쓰기 행추가 기능 질문 채택완료

<?php 

            if ($w == "u") {

            $wr_6x = explode("|",substr($write['wr_6'],1));

            }

?></p>

<p><table id="table1" cellspacing="0" cellpadding="0">

            <tr class="sound_only">

                <th>구분</th>

            </tr>

            <?php 

                $wr6_cnt = count($wr_6x);

                    if(!$wr6_cnt){

                    $wr6_cnt = 1;

                    }

                for ($i = 0;  $i < $wr6_cnt; $i++) {

            ?>

            <tr>

                <td>

                    <textarea name="wr_6x[]"><?php echo $wr_6x[$i];?></textarea>

                    <input type="button" value="삭제" class="tabledel_btn" onclick="ob_adRows.delRow(this)"/>

                    <input type="button" value="추가" class="tableadd_btn" onclick="ob_adRows.addRow(this)"/>

                </td>

            </tr>

            <?php } ?>

<table id="dyntbl1" cellspacing="0" cellpadding="0"></table>

<script>

            function adRowsTable(id){

                var table = document.getElementById(id);

                var me = this;

                    if(document.getElementById(id)){

                        var row1 = table.rows[1].outerHTML;

                        function setIds(){

                        var tbl_id = document.querySelectorAll('#'+ id +' .tbl_id');

                        for(var i=0; i<tbl_id.length; i++) tbl_id[i].innerHTML = i+1;

                    }

                    me.addRow = function(btn){

                    btn ? btn.parentNode.parentNode.insertAdjacentHTML('afterend', row1): table.insertAdjacentHTML('beforeend',row1);

                    setIds();

                    }

                    me.delRow = function(btn){

                    btn.parentNode.parentNode.outerHTML ='';

                    setIds();

                    }

                    }

                }

            var ob_adRows = new adRowsTable('table1');

</script>

<?php

if (!defined("_GNUBOARD_")) exit; // 개별 페이지 접근 불가</p>

<p>for ($i = 0;  $i < count($wr_6x); $i++)

{

    $wr_6 = $wr_6."|".$wr_6x[$i];

}

$sql678 = "update $write_table set

    wr_6  = '$wr_6'                     

    where wr_id = '$wr_id' ";

sql_query($sql678);

?>