rem: newSrc = QxTreeElement._blankURI; 
add: newSrc = (new QxImageManager).getBlank(); 
context: proto._renderImplNavigation = function(){  if (!this.isCreated()) {    return true;  };  // Omit rendering if no parentTree is defined.  // If there will be a new parentTree rendering will be started  // through parentTree modifier.  var vParentTree = this.getParentTree();  if (!vParentTree) {    return true;  };  // this.debug("R-Navigation[" + this.getLabel() + "]...");  var newSrc;  if (!vParentTree.useTreeLines())  {    newSrc = QxTreeElement._blankURI;  }  else if (this.isLastChild())  {    newSrc = this._navigationEndURI;  }  else  {    newSrc = this._navigationCrossURI;  };  if (newSrc != this._navigationImage.src)  {    this._navigationImage.src = newSrc;  };  return true;};
meta: 1005	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1005/1914d23ac666783d9fe12e47f8df012dbfe45864/QxTreeElement.js/buggy/qooxdoo/source/script/widgets/QxTreeElement.js