حذف یک ردیف از دیتابیس

$line = 0;
foreach($OnIsbn as $key => $value)
{
$query = "select title,price from books where isbn=$value";
$result = @mysql_query ($query);
$row = mysql_fetch_assoc($result);
echo '<tr data-id ='.$line.'>';
echo '<td>'.$row['title'].'</td>';
echo '<td id = cost>'.$row['price'].'</td>';
echo '<td><input id = num type = text size = 5 value = 1 ></td>';
echo '<td><p id = total></p></td>';
echo '<td><button class = button-row></button></td>';
echo '</tr>';
$line = $line + 1;
}


$(document).ready(function(){
$('.button-row').click(function(event){
$(event.target).parent().parent().remove();
var rowId = $(event.target).parent().parent().attr('data-id');
$.ajax({
type:'post',
url: 'row_remove.php',
data:'rowId=' + rowId
});
});
});