js 获取 ajax返回数据及处理

                            $.ajax({
                                url: "http://xiaocui.dgoods.cn/app/index.php?i=5&c=entry&do=check&m=stonefish_bigwheel",
				type: "POST",
				data:{'mdcode':param},
				dataType:"json",
				async: true,
                                success: function (succ) {
				var num = succ[0].scannum;
				var md = succ[0].mdcode;
				//alert(md);
				var ntime = succ[0].scantime;
                                var message = "";
				if (num ==0) {
				alert("恭喜您获得10个扫码积分！积分余额和使用规则详见右下角【真伪查询】");
                                var date = new Date();
                                var month = date.getMonth() + 1;
                                var strDate = date.getDate();

                                    $(".msg_list ul").append(message);
                                    $('.drop').hide(100);
                                    document.getElementsByTagName('BODY')[0].scrollTop = document.getElementsByTagName('BODY')[0].scrollHeight;
                                },
                                error: function (e) { }
                            });