Not an issue, a suggestion...

[leolems]

Now you have cookie time only in nr of days, you could enhance that a little.

The old "days" parameter is renamed to "period".. (it defaults back to the original days).

Now the period can be "4d" or "8h" or "1d4h" or "12" for just 12 days

    if (typeof period === "number") {
        period = period.toString()+"d"
    }
    if (typeof period === "string") {
        var addtime=0, t, i, reg = /([0-9]{1,3}[d|h])/g, arr = period.match(reg);
        for (i=0;i<arr.length;i++) {
            t=arr[i].slice(-1);
            switch(t) {
                case 'h':
                    addtime += (parseInt(arr[i]) * 60 * 60 * 1000)
                    break;
                case 'd':
                default:    
                    addtime += (parseInt(arr[i]) * 24 * 60 * 60 * 1000)
                    break;
            }
        }
      date.setTime(date.getTime() + addtime);
      expires = "; expires=" + date.toUTCString();
    }

[martinstreicher]

Using the current code, how do you set values so that a cookie is perennial? Days to -1? Or just some large value?