nl_tokens: Removes the given CSS class ( es ) from this Component s rendered element .
pl_tokens: function ( cls , prefix , suffix ) { var oldCls = this . getCls ( ) , newCls = ( oldCls ) ? oldCls . slice ( ) : [ ] , ln , i ; prefix = prefix || '' ; suffix = suffix || '' ; if ( typeof cls == "string" ) { newCls = Ext . Array . remove ( newCls , prefix + cls + suffix ) ; } else { ln = cls . length ; for ( i = 0 ; i < ln ; i ++ ) { newCls = Ext . <mask> . remove ( newCls , prefix + cls [ i ] + suffix ) ; } } this . setCls ( newCls ) ; }