objective c - iAds 10 Instances -

i have app has 14 pages.the navigation bar , iads location stays same middle content changes. when switch through pages message there 10 instances of iadbanner. there way can make iad lock onto main screen when switch onto next screen iad remain @ bottom rest of screens without refreshing each time (aka have 1 iad in multiple views)?

currently here iad code

-(void)bannerviewdidloadad:(adbannerview *)banner {     [uiview beginanimations:nil context:nil];     [uiview setanimationduration:1];     [banner setalpha:1];     [uiview commitanimations]; } -(void)bannerview:(adbannerview *)banner didfailtoreceiveadwitherror:(nserror *)error {     [uiview beginanimations:nil context:nil];     [uiview setanimationduration:1];     [banner setalpha:0];     [uiview commitanimations];   }