anchor.diff:      $(function () {
           mess.sidebar.load(mess.sidebar.bars.SALE);
           var dprice = "${item.dprice}";
  +        var dcount = "${item.dcount}";
           $('#inpDcount').keyup(function(){
  -            if (!raw.re.patterns.integer_gt0.test($(this).val())) {
  +            var rcount = $(this).val();
  +            if (!raw.re.patterns.integer_gt0.test(rcount)) {
                   alert("请输入正整数!");
  -                $(this).val("");
  +                $(this).val(dcount);
  +                $(this).focus();
  +                return false;
  +            } else if (rcount > dcount) {
  +                alert("退货数量不能大于购买数量!");
  +                $(this).val(dcount);
                   $(this).focus();
                   return false;
               }
               $("#inpPayment").val($(this).val() * dprice);
  +        });
  +        $("form").submit(function() {
  +            var rcount = $("#inpDcount").val();
  +            if (!raw.re.patterns.integer_gt0.test(rcount)) {
  +                alert("请输入正整数!");
  +                $(this).val(dcount);
  +                $(this).focus();
  +                return false;
  +            } else if (rcount > dcount) {
  +                alert("退货数量不能大于购买数量!");
  +                $(this).val(dcount);
  +                $(this).focus();
  +                return false;
  +            }
  +        });
  +        $("#btnList").click(function() {
  +            document.location = "${base}/sale/order/list.io";
           });
       });
   
  
positive.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="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">
  
negative.code:             <jsp:param name="info3" value="return"/>
          </jsp:include>
  
          <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">
  