Prevent GetPriorNode() and GetNextNode() from traversing above root node when aCurrentNode is the rootNode. r=brade@netscape.com sr=sfraser@netscape.com a=asa@mozilla.org git-svn-id: svn://10.0.0.236/trunk@101968 18797224-902f-48f8-a5cc-f745e15eee43
Prevent GetPriorNode() and GetNextNode() from traversing above root node when aCurrentNode is the rootNode. r=brade@netscape.com sr=sfraser@netscape.com a=asa@mozilla.org git-svn-id: svn://10.0.0.236/trunk@101968 18797224-902f-48f8-a5cc-f745e15eee43