rem: var bx = this.mOutliner.boxObject.QueryInterface(Components.interfaces.nsIOutlinerBoxObject); 
add: var bx = this.mTree.boxObject.QueryInterface(Components.interfaces.nsITreeBoxObject); 
context:   markColumnInsert: function (aColumn, aWhere)  {    var col = this.mLastDragCol;    var lastWhere = this.mLastDragColWhere;    if (col)      col.setAttribute("properties", "");    if (aWhere != "before" && aWhere != "after") {      this.mLastDragCol = null;      this.mLastDragColWhere = null;      return;    }    col = aColumn;    if (col) {      this.mLastDragCol = col;      this.mLastDragColWhere = aWhere;      col.setAttribute("properties", "dnd-insert-"+aWhere);    }        var bx = this.mOutliner.boxObject.QueryInterface(Components.interfaces.nsIOutlinerBoxObject);    bx.invalidate();  },
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/d38a0937d9c93a0a9d913e2ac781e4328bb8cc73/inTreeBuilder.js/buggy/extensions/inspector/resources/content/jsutil/xul/inTreeBuilder.js