},\r
style : function( v ){\r
if( v instanceof NodeStyle ){\r
- this.__style && this.__style.unRegister( this );\r
- this._style = v;\r
- this.__style = StylePrivate.getPrivateData( v ); \r
- this.__style.register( this );\r
+ if( v !== this._style ){\r
+ this.__style && this.__style.unRegister( this );\r
+ this._style = v;\r
+ this.__style = StylePrivate.getPrivateData( v ); \r
+ this.__style.register( this ); \r
+ };\r
return this.User;\r
} else\r
if( v === null ){\r