Assertion:
Netscape 4.x can not correctly hyperlink to a bookmark (A NAME) that is nested inside a LAYER element from another document. It succeeds in jumping to the document, and it does attempt to jump within the document, but I didn't see a particular pattern to where it was jumping to...but it isn't the correct location. Hyperlinking to a bookmark nested in a LAYER from within the same document appears to work correctly.

Simple link to another document with bookmark (A NAME). Document should scroll so that the bookmark with the blue background is in view.
Click on the link to see the described behavior

Link to another document with bookmark (A NAME) nested in a layer at the bottom of the page. Document should scroll so that the bookmark with the green background is in view.:
Click on the link to see the described behavior

Link to another document. At the top are links to bookmarks/anchors WITHIN the document. Anchors in LAYERs work within the document context but not externally:
Click on the link to see the described behavior