/**
 * tian
 */
 
//storage tools;
var st = {
    sset : function(a, b) {
        storage.set(a, b);
    },
    sget : function(a) {
        return storage.get(a);
    },
    sdel : function(a) {
        storage.del(a);
    },
    cset : function(a, b) {
        var c = [], _para = {};
        for ( var d = 0, _len = arguments.length; d < _len; d++) {
            c[d] = arguments[d];
        }
        ;
        _para.exps = typeof (c[2]) != "undefined" ? Math.ceil(c[2]
                / (3600 * 24)) : undefined;
        _para.name = c[0];
        _para.val = c[1];
        _para.path = c[3];
        _para.domain = c[4];
        _para.secure = c[5];
        storage.cookieStore.set(_para);
        return false;
    },
    cget : function(a) {
        return storage.cookieStore.get(a);
    },
    cdel : function(a) {
        storage.cookieStore.del(a);
    }
};
 
//
 
var storage = {
    _g: function (id){return document.getElementById(id);},
    _c: function (a){return document.createElement(a);},
    _domain : '',       //设置cookie域名
    _store : null,
    _init : false,
    init : function() {
        if (window.localStorage) {
            this._store = this.localStore;
        } else if (navigator.userAgent.indexOf('MSIE') >= 0) {
            this._store = this.ieStore;
        }
        this._store.init();
        this.cookieStore.init();
    },
    set : function(a, b) {
        this.checkInit();
        this._store.set({
            name : a,
            val : b
        });
    },
    get : function(a) {
        this.checkInit();
        return this._store.get(a);
    },
    del : function(a) {
        this.checkInit();
        this._store.del(a);
    },
    isInit : function() {
        this.checkInit();
        return this._store._init;
    },
    checkInit : function() {
        if (!this._init)
            this.init();
        if (!this._store.isInit())
            this._store.init();
    },
    localStore : {
        _init : true,
        init : function() {
        },
        get : function(a) {
            return localStorage.getItem(a);
        },
        set : function(a) {
            localStorage.setItem(a.name, a.val);
        },
        del : function(a) {
            localStorage.removeItem(a);
        },
        isInit : function() {
            return true;
        }
    },
    ieStore : {
        exps : 180,
        _init : false,
        init : function() {
            if (!this.isInit() && !storage._g("_ieStore")) {
                this.store = storage._c("INPUT"), this.store.type = "hidden",
                        this.store.id = "_ieStore", this.store
                                .addBehavior("#default#userData");
                storage._g("logo").appendChild(this.store);
                //注意这里的logo 是页面里一个标签的id,用来创建userdata的数据载体.
                this._init = true;
            } else if (storage._g("_ieStore")) {
                this.store = storage._g("_ieStore");
                this._init = true;
            }
            return this;
        },
        get : function(a) {
            try {
                this.store.load(a);
            } catch (e) {
                return null;
            }
            return this.store.getAttribute("__store__") || null;
        },
        set : function(a) {
            var b = a.name, _val = a.val, 
                _exps = typeof (a.exps) != "undefined" ? a.exps
                    : this.exps;
            var c = new Date();
            c.setDate(c.getDate() + _exps);
            this.store.load(b);
            this.store.expires = c.toUTCString();
            this.store.setAttribute("__store__", _val);
            this.store.save(b);
        },
        del : function(a) {
            this.set({
                name : a
            }, false, -1);
        },
        isInit : function() {
            return this._init;
        }
    },
    cookieStore : {
        _init : false,
        _exps : 180,
        _secure : "",
        init : function() {
            if (!this.isInit()) {
                this._domain = storage._domain;
                this._init = true;
            }
            ;
            return this;
        },
        get : function(a) {
            if (!this._init)
                this.init();
            var b = document.cookie.split("; "), a = a + "=";
            for ( var c = 0, _len = b.length; c < _len; c++) {
                if (b[c].indexOf(a) != "-1") {
                    try {
                        return decodeURIComponent(b[c].replace(a, ""));
                    } catch (e) {
                        return unescape(b[c].replace(a, ""));
                    }
                }
            }
            return null;
        },
        set : function(a) {
            if (!this._init)
                this.init();
            var b = new Date();
            var c = a.name, _val = a.val, _exps = typeof (a.exps) != "undefined" ? a.exps
                    : this._exps, _domain = a.domain || this._domain, _path = a.path
                    || "/", _secure = a.secure || this._secure;
            b.setDate(b.getDate() + _exps);
            var d = c + "=" + escape(_val)
                    + (_exps ? ";expires=" + b.toUTCString() : "")
                    + (_path ? ";path=" + _path : "")
                    + (_domain ? ";domain=" + _domain : "")
                    + (_secure ? ";secure=" : "");
            document.cookie = d;
        },
        del : function(a) {
            if (!this._init)
                this.init();
            if (String.prototype.toLowerCase.apply(typeof (a)) == "string") {
                _name = a;
                a = {
                    name : _name,
                    val : ""
                };
            }
            a.exps = -1;
            a.secure = "";
            this.set(a);
        },
        isInit : function() {
            return this._init;
        }
    }
};