add: this.mAttrTree.treeBoxObject.invalidate(); 
context:   set subject(aObject)   {    this.mSubject = aObject;    var deck = document.getElementById("dkContent");        if (aObject.nodeType == Node.ELEMENT_NODE) {      deck.setAttribute("selectedIndex", 0);            this.setTextValue("nodeName", aObject.nodeName);      this.setTextValue("nodeType", aObject.nodeType);      this.setTextValue("nodeValue", aObject.nodeValue);      this.setTextValue("namespace", aObject.namespaceURI);      if (aObject != this.mDOMView.rootNode) {        this.mDOMView.rootNode = aObject;        this.mAttrTree.treeBoxObject.selection.select(-1);      }    } else {      deck.setAttribute("selectedIndex", 1);      var txb = document.getElementById("txbTextNodeValue");      txb.value = aObject.nodeValue;    }            this.mObsMan.dispatchEvent("subjectChange", { subject: aObject });  },
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/79b253758f69ea7768c0d7d20503e57360db70dd/domNode.js/buggy/extensions/inspector/resources/content/viewers/domNode/domNode.js