$('.chkbox').click(function(){
				var sum=0;
				$(".ordertable input:checked").each(function() {

					var priceofthis = $(this).parents('.ordertable').find('.chkprice').text();
					var nameid = $(this).parents('.ordertable').find('.nameid').text();
					var quan =  $('.quantity').val();
					var mulprice = Number($(this).val()) * Number(priceofthis);
					sum=Number(sum)+Number(mulprice);
					$.post('<?php echo $this->Html->url('/transactions/set_quantity') ?>',{quantity:quan,mulprice:mulprice,nameid:nameid},function(reply){
						alert(reply);
					});
				});
				$('#hash').html(sum);
			});