I use iAd and Admob as my ad networks in my application. As iAd is only available in selected countries I would like to only show those ads to the countries that allow them. I can see I can mediate the percentage of the ads shown but not by country.Is it possible to only show iAd to specific countries from settings in AdWhirl or a way to do this?Is there a way to check in the app which Ad the Ad has come from, within code rather than visually?