var detailController = segue.destinationViewController as ShowItemViewController
detailController.currentId = nextId!

override func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {


    nextId = itemArray?.objectAtIndex(indexPath.row).objectForKey("objectId") as? NSString

    self.performSegueWithIdentifier("showItemSegue", sender: self)

}


override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {

    if (segue.identifier == "showItemSegue") {
        var detailController = segue.destinationViewController as ShowItemViewController
        detailController.currentId = nextId!
    }

}

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {

    if (segue.identifier == "showItemSegue") {
        let navController = segue.destinationViewController as UINavigationController
        let detailController = navController.topViewController as ShowItemViewController
        detailController.currentId = nextId!
    }
}