CalculateCells

by raskalbass

HTML

<input type="text" name="qtty">
<input type="hidden" name="price" value="2">
<input type="text" name="totalprice">
<br>
<input type="text" name="qtty">
<input type="hidden" name="price" value="3">
<input type="text" name="totalprice">

JavaScript

$('input[name="qtty"]').keyup(function () {
    var qtty = $(this).val();
    var price = $(this).next().val();
    var total = (qtty * 1) * (price * 1);
    $(this).nextAll().eq(1).val(total);
});