누르면 DB삭제 버튼 질문

<?php
include_once('./_common.php');

if ($is_guest)
    alert_close('회원만 조회하실 수 있습니다.');

$g5['title'] = $member['mb_name'].' 님의 재입고 SMS 알림 신청 내역';
include_once(G5_PATH.'/head.sub.php');

$sql = " select a.ss_id, a.it_id, a.ss_mbid, b.it_name
            from {$g5['g5_shop_item_stocksms_table']} a left join {$g5['g5_shop_item_table']} b on ( a.it_id = b.it_id )
            where a.ss_mbid IN ( '{$member['mb_id']}', '전체회원' )
            order by a.ss_id ";
$result = sql_query($sql);
?>

<!-- SMS 내역 시작 { -->
<div id="coupon" class="new_win">
    <h1 id="win_title"><?php echo $g5['title'] ?></h1>
    <ul>
    <?php
    $cp_count = 0;
    for($i=0; $row=sql_fetch_array($result); $i++) {

        $cp_count++;
    ?>
    <li>
        <div class="cou_top">
            <span class="cou_tit"><?php echo $row['it_id']; ?></span>
            <span class="cou_tit" style="margin-left:30px;"><?php echo $row['it_name']; ?></span>
            <span class="cou_pri">삭제</span>
        </div>
    </li>
    <?php
    }

    if(!$cp_count)
        echo '<li class="empty_li">신청하신 SMS 알림 내역이 없습니다.</li>';
    ?>
    </ul>
    <button type="button" onclick="window.close();" class="btn_close">창닫기</button>
</div>

<?php
include_once(G5_PATH.'/tail.sub.php');
?>