nl_tokens: Normalizes currentStyle and computedStyle .
pl_tokens: function ( prop ) { var me = this , dom = me . dom , hook = me . styleHooks [ prop ] , cs , result ; if ( dom == document ) { return null ; } if ( ! hook ) { me . styleHooks [ prop ] = hook = { <mask> : Ext . dom . Element . normalize ( prop ) } ; } if ( hook . get ) { return hook . get ( dom , me ) ; } cs = window . getComputedStyle ( dom , '' ) ; // why the dom.style lookup? It is not true that "style == computedStyle" as // well as the fact that 0/false are valid answers... result = ( cs && cs [ hook . name ] ) ; // || dom.style[hook.name]; // WebKit returns rgb values for transparent, how does this work n IE9+ //        if (!supportsTransparentColor && result == 'rgba(0, 0, 0, 0)') { //            result = 'transparent'; //        } return result ; }