//Ajax添加品牌
 function addBrandWI(){
 layer.open({
  type: 0,
  title: '品牌添加',
  shadeClose: true,
  shade: 0.8,
  btn: ['保存', '取消'],
  area: ['40%', '70%'],
  content: $('#add_Brand').html(),
  yes:function(index, layero){
  subForm();
  layer.close(index);
  },cancel: function(){}
 }); 
 }
 
 function subForm(){
 var bname=$("#brandname").val();
 $.ajax({
   url: 'salecenter.jsp"GET",
   dataType: "json", //返回json格式的数据
   async: true,
   success: function (data) {
    if (data == '0') {
    layer.alert("品牌添加成功");
    } else if(data == '1'){
    layer.alert("品牌添加失败");
    }else if(data == '2'){
    layer.alert("此品牌已经存在");
    }
   }, error: function() {
   }
  });
 }

<!-- 弹出框添加品牌 -->
<div id="add_Brand" style="display:none;">
 <form autocomplete="off" id="sub_form" method="post">
  <div class="add_model">
  <div>
  <b class="out">*</b>品牌名称：
  </div>
  <div>
  <input name="brandname" id="brandname" type="text" value=""/>
  </div>
  </div>
 </form>
</div>