javascriptアクセスクッキー

<script>

    function getCookie(name){   

        var cookieArray=document.cookie.split("; "); //     cookie       

        var cookie=new Object();   

        for (var i=0;i<cookieArray.length;i++){   

           var arr=cookieArray[i].split("=");       //         

           if(arr[0]==name)return unescape(arr[1]); //      cookie，         

        }

        return "";

    }



    function setCookie(name,value)//    ，   cookie   ，     

    {

        var Days = 30; //  cookie      30  

        var exp = new Date();    //new Date("December 31, 9998");

        exp.setTime(exp.getTime() + Days*24*60*60*1000);

        document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();

    }

</script>