instanceof check on element always return true?

I receive an element in a Clickhandler like this:
final Element el = event.getNativeEvent().getEventTarget().cast()

It concerns a DIV element which the tag name shows.

However, the following result in true:
el instanceof DivElement (as expected).
el instanceof InputElement (not expected!!).
el instanceof LabelElement (not expected!!).

What am I missing here? or is this a bug?

--
You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group.
To post to this group, send email to google-web-toolkit@googlegroups.com.
To unsubscribe from this group, send email to google-web-toolkit+unsubscribe@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.