Problem: You want to have an ad policy set to show an ad every other time (or every third time, every fourth time, etc.), but that only works for multi-playlist players. Any time the page reloads, the Flash player resets its state, which means the ad policy resets too. So, if you have single title players all over your site, but still want to maintain an ad policy that doesn't show an ad every single time, then this solution should fit the bill.