Jquery เกี่ยวกับการลบ Element ขอความช่วยเหลือเร่งด่วนทีครับ

if($count_image > 0)
{
    echo'                
    <div class="show-imgH">
    ';                
        while($result_image = mysql_fetch_assoc($query_image))
        {
            echo'
                <li class="imgH-box">            
                    <div class="img-experimental">                    
                        <a href="img_results/'.$result_image["name_image"].'" target="_blank"><img src="img_results/'.$result_image["name_image"].'"/></a>
                    </div>
                    
                    <div class="img-details">
                        <form method="POST" action="">
                        ชื่อ : '.$result_image["name_image"].'
                        ดำเนินการ: <a href="javascript:void(0);" class="edit_img">แก้ไข<a> ::                                         
                            <a href="javascript:void(0); " class="del_img" >ลบ</a>    
                            <input type="hidden" name="id_image" value='.$result_image["id_image"].' />            
                        </form>                            
                    </div>
                </li>
            ';                        
        }                
    echo'        
    </div>
    ';
}​

$(function(){   
/*---------- ลบ -----------*/
    $('.del_img').click( function(){
        $('.alert-del-img').remove();
        var r=confirm("ยืนยันอีกครั้ง");
        if (r==true)
        {
            $('.img-details').append('<span class="loading"><br /><center><img src="img/ajax-loader.gif" /></span>');
            $.post(
                    'checkData.php?checkData=zone_edit_operation',
                    {id_image: $('input[name="id_image"]').val(), on: "del_img"},
                    function(response){
                        if(response == 1)
                        {
                            $('.loading').fadeOut('slow');
                            $('.img-details').append('<span class="alert-del-img" style="color: green;"><center>ลบข้อมูลภาพเรียบร้อย!</span>').fadeIn('fast');
                            setTimeout( function(){
                                $('.alert-del-img').fadeOut();        
                                //$(this).parent().parent().remove();
                                $(this).parents('li.imgH-box').remove();
                            },500);                                    
                        }
                    },
                    'html'
            );
            return false;
        }
    });
});​