nl_tokens: Traverses the ID hierarchy and invokes the supplied cb on any IDs that should would receive a mouseEnter or mouseLeave event .
pl_tokens: function traverseEnterLeave ( from , to , fn , argFrom , argTo ) { var common = from && to ? getLowestCommonAncestor ( from , to ) : null ; var pathFrom = [ ] ; while ( true ) { if ( ! from ) { break ; } if ( from === common ) { break ; } var alternate = from . alternate ; if ( alternate !== null && alternate === common ) { break ; } pathFrom . push ( from ) ; from = getParent ( from ) ; } var pathTo = [ ] ; while ( true ) { if ( ! to ) { <mask> ; } if ( to === common ) { break ; } var _alternate = to . alternate ; if ( _alternate !== null && _alternate === common ) { break ; } pathTo . push ( to ) ; to = getParent ( to ) ; } for ( var i = 0 ; i < pathFrom . length ; i ++ ) { fn ( pathFrom [ i ] , 'bubbled' , argFrom ) ; } for ( var _i = pathTo . length ; _i -- > 0 ; ) { fn ( pathTo [ _i ] , 'captured' , argTo ) ; } }