js cookie的操作

    function setCookie(name, value, path, domain, secure,expire)
    {//{{{
        //expireµ¥Î»ÊÇÃë
        if(!expire)
        {
            expire = expire*24*60*60;//365Ìì
        }
        var Days = 365; //cookie ½«±»±£´æ 365 Ìì
        var exp  = new Date();    //new Date("December 31, 9998");
        exp.setTime(exp.getTime() + expire*1000);

        document.cookie = name + "=" + escape(value) +
            ("; expires=" + exp.toGMTString() ) +
            ((path) ? "; path=" + path : "") +
            ((domain) ? "; domain=" + domain : "") +
            ((secure) ? "; secure" : "");
    }//}}}

    function getCookie(name)
    {//{{{
        var dc = document.cookie;
        var prefix = name + "=";
        var begin = dc.indexOf("; " + prefix);
        if (begin == -1) {
            begin = dc.indexOf(prefix);
            if (begin != 0) return null;
        } else {
            begin += 2;
        }
        var end = document.cookie.indexOf(";", begin);
        if (end == -1) {
            end = dc.length;
        }
        return unescape(dc.substring(begin + prefix.length, end));
    }//}}}

    function deleteCookie(name, path, domain)
    {//{{{
        if (getCookie(name))
        {
            document.cookie = name + "=" +
                ((path) ? "; path=" + path : "") +
                ((domain) ? "; domain=" + domain : "") +
                "; expires=Thu, 01-Jan-70 00:00:01 GMT";
        }
    }//}}}