anchor.diff:              <jsp:param name="info3" value="return"/>
           </jsp:include>
   
  -        <form id="fmMain" name="fmMain" action="${base}/sale/order/return/s2.io" class="am-form am-form-horizontal">
  +        <form id="fmMain" name="fmMain" action="${base}/sale/order/return/s2.io" method="post" class="am-form am-form-horizontal">
           <input type="hidden" name="id" value="${item.id}">
           <div class="am-tabs am-margin">
               <ul class="am-tabs-nav am-nav am-nav-tabs">
  
positive.code:     $(function () {
          mess.sidebar.load(mess.sidebar.bars.SALE);
          var dprice = "${item.dprice}";
          $('#inpDcount').keyup(function(){
              if (!raw.re.patterns.integer_gt0.test($(this).val())) {
                  alert("请输入正整数!");
                  $(this).val("");
                  $(this).focus();
                  return false;
              }
              $("#inpPayment").val($(this).val() * dprice);
          });
      });
  
  
negative.code: 
              <div class="am-tabs-bd">
                  <div class="am-tab-panel am-fade am-in am-active" id="tab3">
                      <div class="am-g am-margin-top-sm">
                          <label for="_dcount" class="am-u-sm-2 am-form-label mz-admin-label-fixed">已购数量</label>
                          <div class="am-u-sm-4 am-u-end">
                              <input id="_dcount" name="_dcount" value="${item.dcount}" type="text" class="am-input-sm" readonly>
                          </div>
                      </div>
                      <div class="am-g am-margin-top-sm">
                          <label for="inpDcount" class="am-u-sm-2 am-form-label mz-admin-label-fixed">退货数量</label>
                          <div class="am-u-sm-4 am-u-end">
  