2:3-4. Cross Appeals
(a) To the Appellate Division. A respondent may cross appeal as of right except that if an appeal is taken from any order by leave of court, a cross appeal may not be taken from any other order in the matter without leave pursuant to R. 2:5-6(b).
(b) To the Supreme Court. A respondent may cross appeal as of right only if such cross appeal meets the requirements of R. 2:2-1(a). Further, if an appeal is taken from any order by leave of court, a cross appeal may not be taken in the matter without leave pursuant to R. 2:5-6(b).