context: function rdf_change (n1, a, n2){    var oldN2 = this.ds.GetTarget (n1, a, true);    if (!ASSERT(oldN2, "Unable to change " + n1.Value + " -[" + a.Value +                "]->, " + "because old value was not found."))    {        return null;    }        return this.ds.Change (n1, a, oldN2, n2);    }
meta: 3298	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/3298/703717eb72f3378c625c0fefe679e646d1c5b0ff/rdf.js/buggy/xul/content/rdf.js