$.post("/dadashou/index.php/Companymanage/findBrand_ajax",{kw:$this.val().trim(),cache:new Date().getTime()},function(data){ 
        if(data!=0){
            $brandhidden.empty(); 
            var html=""; 
            for(var i=0;i'+data[i]['brand']+'
'+"\n"; 
            } 
            html+="   ----- 务必在下拉框中选择 -----"; 
            //把loading动态图替换成内容 
            $brandhidden.html(html); 
            $brandhidden.css({display:'block'});
        }else{
            $this.siblings('input[name="brands"]').val($this.val().trim());
            $this.siblings('.brandhidden').fadeOut('fast'); 
            $this.data('ok',true);
        }    
        return false;   
    },"json");