How Jquery get textbox array value when checkbox value checked?

I want to get only textbox value where checked by checkbox, all textbox and checkbox from database array.

<tr><?php foreach($arrbook as $book) { ?> <td><input type="checkbox" name="book" class="book" value="<?php echo $book['id_book']; ?>"/> <?php echo $book['name_book'];?></td> <td><input type="text" name="bookprice"class="bookprice" value="<?php echo $book['book_price']; ?>"/</td> <?php } ?></tr> <td><div class="button"><a href="#" onClick="submitbookdata();">Save !</a></div></td></tr>

<script>
function submitbookdata() {
    var bookidArr = [];
    var bookpriceArr = [];
    $('.book').each(function() {
            if (this.checked) {
                var current = $(this).val();
                $(this).parents("tr").find(".bookprice").each(function)(index, n) {
                    if ($.each('n').val() == current) {
                        bookpriceArr.push(this.value);
                    }
                });
        }
        bookidArr.push($(this).val());
    });
    alert(bookpriceArr);
}
</script>