Js 的常用方法：页面跳转，Session，类继承

MyApp.Base = function () {
}
var basePrototype = MyApp.Base["prototype"];
//对象克隆方法
basePrototype["Clone"] = function (myObj) {
    if (typeof (myObj) != 'object') return myObj;
    if (myObj == null) return myObj;

    var myNewObj = new Object();

    for (var i in myObj)
        myNewObj[i] = this.Clone(myObj[i]);

    return myNewObj;
}
//页面导航方法
basePrototype["Navigate"]=function(url)
{
    window.location.href = url;
}
//页面导航方法
basePrototype["NavigateTag"] = function (tag) {
    switch (tag) {
        case "myHome":
            this.Navigate(bootPATH + "app/html/myhome.html");
            break;
        case "zone":
            this.Navigate(bootPATH + "app/html/header_sample.html");
            break;
    }
}

basePrototype["SetSession"] = function (keyname, keyvalue) {
    var Days = 30;
    var exp = new Date();
    exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000);
    document.cookie = keyname + "=" + escape(keyvalue) + ";expires=" + exp.toGMTString();
}
basePrototype["GetSession"] = function (keyname) {
    var aCookie = document.cookie.split("; ");
    var lastMatch = null;
    for (var i = 0; i < aCookie.length; i++) {
        var aCrumb = aCookie[i].split("=");
        if (keyname == aCrumb[0]) {
            lastMatch = aCrumb;
        }
    }
    if (lastMatch) {
        var v = lastMatch[1];
        if (v === undefined) return v;
        return unescape(v);
    }
    return null;
}
basePrototype["ClearSession"] = function (keyname) {
    if (keyname == "") {
        window.localStorage.clear();
    }
    else {
        document.cookie = null;
    }
}
basePrototype["Extend"] = function (subClass, superClass) {
    var F = function () { };

    F.prototype = superClass.prototype;

    subClass.prototype = new F();

    subClass.prototype.constructor = subClass;

    subClass.superclass = superClass.prototype; //加多了个属性指向父类本身以便调用父类函数

    if (superClass.prototype.constructor == Object.prototype.constructor) {

        superClass.prototype.constructor = superClass;

    }
};
//定义全局的Base类对象
var MyAppBase = new MyApp.Base();

用法如下：

//设置Session
MyAppBase.SetSession("Username", "wahaha");
//如果设置的是一个实体类，则需要用JSON.stringify把实体转化为Json字符串保存
MyAppBase.SetSession("User", JSON.stringify(UserItem));

//获取Session
MyAppBase.GetSession("Username");
//用JSON.parse把Json字符串转化为实体
JSON.parse(MyAppBase.GetSession("User"));

//跳转页面
MyAppBase.Navigate(bootPATH + "app/html/cctvlist.html");

//继承类
MyAppBase.Extend(ChildClass , ParentClass);