title: Changing iAd position and placement
body: <p>I've been looking at various tutorials and code snippets, try to implement iAd. I've been successful to an extent but I need to customise, I can't seem to work out what I need to do to make my changes, can anyone help?</p>
  
  <pre><code>- (void)viewDidLoad
  {
  adView = [[ADBannerView alloc] initWithFrame:CGRectZero];
  adView.frame = CGRectOffset(adView.frame, 0, -50);
  adView.requiredContentSizeIdentifiers = [NSSet setWithObjects:ADBannerContentSizeIdentifierPortrait, ADBannerContentSizeIdentifierLandscape, nil];
  adView.currentContentSizeIdentifier = ADBannerContentSizeIdentifierPortrait;
  [self.view addSubview:adView];
  adView.delegate = self;
  self.bannerIsVisible = NO;
  [super viewDidLoad];
  
  // Do any additional setup after loading the view from its nib.
  }
  
  - (void)bannerViewDidLoadAd:(ADBannerView *)banner
  {
  if (!self.bannerIsVisible)
  {
  
      [UIView beginAnimations:@"animateAdBannerOn" context:NULL];
      // banner is invisible now and moved out of the screen on 50 px
      banner.frame = CGRectOffset(banner.frame, 0, 50);
      [UIView commitAnimations];
      self.bannerIsVisible = YES;
  }
  }
  
  - (void)bannerView:(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error
  {
  if (self.bannerIsVisible)
  {
      [UIView beginAnimations:@"animateAdBannerOff" context:NULL];
      // banner is visible and we move it out of the screen, due to connection issue
      banner.frame = CGRectOffset(banner.frame, 0, -50);
      [UIView commitAnimations];
      self.bannerIsVisible = NO;
  }
  }
  </code></pre>
  
  <p>As it stands, the banners are loaded at the top of a UIWebView. Firstly I'd like it at the bottom and secondly, the ad overlaps the WebView content, is there any way I can push the WebView when an ad loads or disappears?</p>
  
  <p>I'd appreciate any help, this is driving round the bend!</p>
  
  <p>Thanks.</p>