nl_tokens: TODO : Look at this private == > used by Fx
pl_tokens: function ( width ) { var <mask> = this , isNum = ( typeof width == 'number' ) ; if ( isNum && me . autoBoxAdjust && ! me . isBorderBox ( ) ) { width -= ( me . getBorderWidth ( "lr" ) + me . getPadding ( "lr" ) ) ; } return ( isNum && width < 0 ) ? 0 : width ; }