/*cookie start*/

var Cookie=new function(){

    //添加cookie

    this.add=function(name,value,hours){

        var life=new Date().getTime();

        life+=hours*1000*60;

        var cookieStr=name+"="+escape(value)+";expires="+new Date(life).toGMTString();

        document.cookie=cookieStr;

    };

    //获取cookie值

    this.get=function(name){

        var cookies = document.cookie.split(";");

        if(cookies.length>0){

            var cookie=cookies[0].split("=");

            if(cookie[0]==name)

                return unescape(cookie[1]);

        }

        return null;

    };

    //删除cookie

    this.remove=function(name){

        var cookieStr=name+"="+escape('null')+";expires="+new Date().toGMTString();

        document.cookie=cookieStr;

    };

}

/*cookie end*/