RE: DocumentTraversal

Thanks.  But are you saying that this is by convention?  I can't find
anything in the standard
that guarantees that such a cast will always work, i.e., the class that
implements Document will also
implement DocumentTraversal.

>>Is there a parser-independent way to obtain a DocumentTraversal interface?
>>Does this imply that the class implementing the (DOM Level 2) Document is
>>guaranteed to also support DocumentTraversal?
>
> Check hasFeature to find out if the document support the Traversal APIs.
If
> it does, you should be able to cast the Document into a DocumentTraversal.
> (Details of casting are language-dependent, but should be the same for all
> implementations that share a single language binding.)