iPad SDK：嵌入式YouTube电影在UIWebView背后播放全屏版本

I have a UIWebview within a UIScrollView. Within the webview I have an embedded YouTube movie. When I play the YouTube movie everything works fine, however, when I press the fullscreen button the movie starts playing behind the webview. Bringing the WebView to the front does not work, because I want the scrolling capabilities of the ScrollView to do horizontal scrolling.I have a UIWebview within a UIScrollView. Withi