cookie

GLOBAL.namespace('Cookie');
GLOBAL.Cookie = {
    //读取
    read : function(name) {
        var cookieStr = '; ' + document.cookie + '; ';
        var index = cookieStr.indexOf('; ' + name + '=');
        if (index != -1){
            var s = cookieStr.substring(index + name.length + 3, cookieStr.length);
            return unescape(s.substring(0, s.indexOf('; ')));
        } else {
            return null;
        }
    };

    // 设置
    set : function(name, value, expires) {
        var expDays = expires * 24 * 60 * 60 * 1000;
        var expDate = new Date();
        expDate.setTime(expDate.getTime() + expDays);
        var expString = expires ? '; expires=' + expDate.toGMTString() : '';
        var pathString = ';path = /';
        document.cookie = name + '=' + escape(value) + expString + pathString;
    };

    // 删除
    del : function(name) {
        var exp = new Date(new Date().getTime() - 1);
        var s = this.read(name);
        if (s != numm){
            document.cookie = name + '=' + s +';expires = ' + exp.toGMTString() + ';path = /'
        };
    }
};