js ajax传值问题

        /**
         * 点击我的按钮 判断是否添加了个人信息
         * @returns {undefined}
         */
        function  isAddMsg(url, openid)
        ｛
            $.ajax({
                type: "POST",
                url: url,
                data: {'openid': openid},
                success: function (json) {
                    var result;
                    var command = eval('(' + json + ')');//eval() 函数可计算某个字符串，并执行其中的的 JavaScript 代码。
                    result = command['result'];
                    if (result === "1") {
                        var a = new Array();
                        // a['id']='id'
                        a['id'] = '1';
                        a['weixin_id'] = openid;
                        alert(a['weixin_id']);
                        post("users_painting", a);/*界面跳转*/
                    } else if (result === "0")
                    {
                        var a = new Array();
                        a['weixin_id'] = openid;
                        post("rigester", a);
                    }
                }
            });
        }