nl_tokens: Remove an item from the hash .
pl_tokens: function ( key ) { var me = this , value ; if ( me . containsKey ( key ) ) { value = me . map [ key ] ; delete me . map [ key ] ; -- me . length ; if ( me . hasListeners . remove ) { me . fireEvent ( 'remove' , me , key , value ) ; } return true ; } return <mask> ; }