eval(this._expr); 
eval(this._expr); 
  notify: function(timer) {    eval(this._expr);    }
5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5459/2e1f32d27583d3891d3c9e28c0cad45167e1ea23/head.js/buggy/tools/test-harness/xpcshell-simple/head.js