add: this.expandTreeElementsWhenArrowing = false; 
context: function TreeOutline(listNode){    this.children = [];    this.selectedTreeElement = null;    this._childrenListNode = listNode;    this._childrenListNode.removeChildren();    this._knownTreeElements = [];    this._treeElementsExpandedState = [];    this.root = true;    this.hasChildren = false;    this.expanded = true;    this.selected = false;    this.treeOutline = this;}
meta: 5650	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5650/d035dfb70117f1c062016a64bbd617f8cffdce6a/treeoutline.js/buggy/WebCore/page/inspector/treeoutline.js