function addF()
        {
            var a = GetCookie();
            if(a==0)
            {
                if (window.confirm("  欢迎收藏优雅尚品官方网站，关注我们最新发布新款！"))
                {
                    SetCookie();
                    window.external.AddFavorite('http://www.joyer.com.cn','优雅尚品网');
                }
                else
                {
                    SetCookie2();
                }
            }
        }
        
        function SetCookie(){ 
            var Then = new Date()　　　　 
            Then.setTime(Then.getTime() + 730*24*60*60*1000 )　 //2年 
            document.cookie = "FavoriteCount=1;expires="+ Then.toGMTString() 
        } 
        
        function SetCookie2(){ 
            var Then = new Date()　　　　 
            Then.setTime(Then.getTime() + 365*24*60*60*1000 )　 //365天 
            document.cookie = "FavoriteCount=1;expires="+ Then.toGMTString() 
        } 

        function GetCookie(){　 
            var cookieString = new String(document.cookie) 
            var cookieHeader = "FavoriteCount=" 
            var beginPosition = cookieString.indexOf(cookieHeader) 
            if (beginPosition != -1){ 
                var a = cookieString.substring(beginPosition 
                    + cookieHeader.length); 
                return a; 
                } 
            else 
                return 0;
        }