nodeInsertBeforeRefChildNull
NIST
If the "refChild" is null then the
"insertBefore(newChild,refChild)" method inserts the
node "newChild" at the end of the list of children.
Retrieve the second employee and invoke the
"insertBefore(newChild,refChild)" method with
refChild=null. Since "refChild" is null the "newChild"
should be added to the end of the list. The last item
in the list is checked after insertion. The last Element
node of the list should be "newChild".
Mary Brady
2001-08-17