anchor.diff:  
         function run(url) {
           number_of_tests++;
  -        document.getElementById('number').innerHTML = number_of_tests;
  +        number_div.innerHTML = number_of_tests;
  +        executing_div.innerHTML = url;
           if (use_iframe) {
             embedded_iframe.src = url;
           } else {
  
positive.code:   </script>
  </head>
    <body onload="startTesting()">
      Dart test driver, number of tests: <div id="number"></div>
      <iframe id="embedded_iframe"></iframe>
    </body>
  </html>
  
negative.code:       function reportError(msg) {
          function handleReady() {
            if (this.readyState == this.DONE && this.status != 200) {
              var error = 'Sending back error did not succeeed: ' + this.status;
              error = error + '. Failed to send msg: ' + msg;
              error_div.innerHTML = error;
            }
          }
          contactBrowserController(
  