         let rect = UIScreen.mainScreen().bounds
         let screenWidth = rect.size.width - 40
         return CGSizeMake(screenWidth/3, 160);
-    }
-    
-    func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAtIndex section: Int) -> UIEdgeInsets
-    {
-        return UIEdgeInsetsMake(10, 5, 10, 5); //top,left,bottom,right
     }
     
     func collectionView(collectionView: UICollectionView, viewForSupplementaryElementOfKind kind: String, atIndexPath indexPath: NSIndexPath) -> UICollectionReusableView {

        //cell.backgroundColor = UIColor.clearColor()

        cell.picture.image = UIImage(data: bill.picture)
        return cell
    }
    
    

        return UICollectionReusableView()
    }
    
    func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAtIndex section: Int) -> UIEdgeInsets
    {
        return UIEdgeInsetsMake(10, 5, 10, 5); //top,left,bottom,right
    }
    
    //MARK: - LoadData
