获取唯一标识GUID

var getGuidGenerator=function () {
        var S4 = function () {
            return (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1);
        };
        return (S4() + S4() + "-" + S4() + "-" + S4() + "-" + S4() + "-" + S4() + S4() + S4());
    }

字符串转JSON

 var StrToJson= function (str) {
        var json = (new Function("return " + str))();
        return json;
    }

把JSON时间转换为Date对象

 var DateTimeJson= function (obj) {
        var t = obj.substring(6);
        t = t.substring(0, t.indexOf(")"));
        return new Date(parseInt(t));
    }