UIWebView scroller object type

Question

Hello,

I need to access the scroller object of an UIWebView, so I do something like this :

id obj = [[webView subviews] objectAtIndex:0];

The problem is that the object returns is not the same in SDK 3 and SDK 4. In 4, it returns an UIScrollView object. In 3, it returns me an UIScroller object, the problem is that this class isn't documented, so I assume it's a private one, is my guess right ?

Thanks for your help.