add disqus comments

lib/dartdoc/client-static.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /** Provides client-side behavior for generated docs using the static mode. */
 #library('client-static');
 
 #import('dart:html');
 #import('../../frog/lang.dart', prefix: 'frog');
 #import('classify.dart');
 
 #source('client-shared.dart');
 
 main() {
-  window.on.contentLoaded.add((e) {
-    enableCodeBlocks();
-  });
+  enableCodeBlocks();
 }