How to copy a XML Node to a new XML document

I Would like to copy a complete node from one XML document to a newly created xml document within navision.
i tried different procedures, but cant get it managed.

what i did is:

finding the node i want to copy

Findnode(currnode, 'Description', cgau_CurrNodeRet);

giving it to a function:

cf_createblob(inboundsalesdocumentline,cgau_currnoderet);

and then try to put it into a new xml doc.


what does the coding needs to look like?

help is appreciated.