rem: if (parent._treeView) 
add: if ("_treeView" in parent) 
context: function tovr_gettree (){    var parent = this.parentRecord        while (parent)    {        if (parent._treeView)            return parent._treeView;        parent = parent.parentRecord    }    return null;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/e711edc14f9f9f43c8fc7d007226dcc5ca78ab65/outliner-utils.js/buggy/extensions/venkman/resources/content/outliner-utils.js