jQuery addition error
<p>I have a strange error going on. This is the jQuery function </p>

<pre><code>jQuery(document).ready(function(){
  jQuery("#new_customer").delegate(".kool", "keyup", function(event) {  
    var SelectProd = jQuery('.price, .qty',this);
    var price = jQuery('.price', this).val();
    var qty =   jQuery ('.qty', this).val();
    var amount = price + qty;
    var lineItemWrapperElement = SelectProd.parent().parent();
    jQuery("input.amount", lineItemWrapperElement).val(amount);
  });
 });
</code></pre>

<p>Instead of doing addtion "+" is concatinating. i.e  12+1 is coming as 121 what seems to be the problem?? any guidance would do.</p>
