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: 1622	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1622/0918cade427e1856c2e2bcfdefa8b4ea3e457b73/rdf.js/clean/xul/content/rdf.js