rem: var newCloseButtonImage = this._closeButtonImage = new qx.ui.basic.Image(this.getCloseButtonImage()); 
add: var newCloseButtonImage = this._closeButtonImage = new qx.ui.basic.Image(propValue); 
context: qx.Proto._modifyCloseButtonImage = function(propValue, propOldValue, propData) {  if (qx.util.Validation.isValidString(propValue)){        // cleanly remove the former closeButtonImage    if (this._closeButtonImage) {      var oldCloseButtonImage = this._closeButtonImage;      oldCloseButtonImage.removeEventListener(qx.constant.Event.CLICK, this._ontabclose);      this.remove(oldCloseButtonImage);       oldCloseButtonImage.dispose();    }    // assign the new closeButtonImage    var newCloseButtonImage = this._closeButtonImage = new qx.ui.basic.Image(this.getCloseButtonImage());    newCloseButtonImage.addEventListener(qx.constant.Event.CLICK, this._ontabclose, this);        // if the close button is enabled, then add the new image immediatelly    if(this.getShowCloseButton()){      this.add(newCloseButtonImage);    }  }  return true;}
meta: 1005	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1005/b4be42c9b3cd3d0fd49a6b7f32c715ff07baa17b/TabViewButton.js/buggy/qooxdoo/frontend/framework/source/class/qx/ui/pageview/tabview/TabViewButton.js