local function showAd_Apple(event)
     -- Is the url a remote call?
     if string.find(event.url, "http://", 1, false) == 1 then
          -- Is it a call to the admob server?
          if string.find(event.url, "c.admob.com", 1, false) == nil then
               adSpace.url = event.url
          else
               -- an actual click on an ad, so open in Safari
               system.openURL(event.url)
               -- Refresh ad
               RemoveAd(0)
               DisplayAd(0)
          end
     else
          -- Feb 1, 2011: if using the old version of this code, remove the
          -- following line:
          -- adSpace.url = event.url
          -- and put in this line instead:
          return true
     end
end
 
local adSpace = native.showWebPopup(0, 272, 320, 48, "ad.html", {baseUrl = system.ResourceDirectory, hasBackground = false, urlRequest = showAd_Apple})