jquery - Calculate the sum and total of products
<p>I have a set of products with Qty, price and Sum in each line like in this picture:</p>

<p><img src="http://i.stack.imgur.com/y6f08.jpg" alt="enter image description here">     </p>

<p>I want to make it with jquery to auto calculate the Sum in each line and the total in the end, without quitting the page. </p>

<p>I don't have a big experience with jquery.</p>

<p>How can I do that ? </p>

<p>Thanks a lot.</p>
