nl_tokens: Destroys the node .
pl_tokens: function ( silent ) { /*
                       * Silent is to be used in a number of cases
                       * 1) When setRoot is called.
                       * 2) When destroy on the tree is called
                       * 3) For destroying child nodes on a node
                       */ var me = this , options = me . destroyOptions ; if ( silent === true ) { me . clear ( true ) ; Ext . each ( me . childNodes , function ( n ) { n . destroy ( true ) ; } ) ; <mask> . childNodes = null ; delete me . destroyOptions ; me . callOverridden ( [ options ] ) ; } else { me . destroyOptions = silent ; // overridden method will be called, since remove will end up calling destroy(true); me . remove ( true ) ; } }