Opening A Link Every Randomly X Seconds?

I am trying to make a script that would open a link every xx randomly seconds.

So far I have come up with this after searching:

<script>
function reloadMe() {
window.location.reload();
}

[Code].....

This works on refreashing a page every xx seconds between 30 and 60 seconds. But it does not open a link.

Is it possible to make a script that opens a link every xx seconds at random. It would be even greater if it can exclude certian times of the day, or can that be done with a cron job?