code review 6631057: godoc: add dropdown playground to nav bar

lib/godoc/package.html

 <!--
         Copyright 2009 The Go Authors. All rights reserved.
         Use of this source code is governed by a BSD-style
         license that can be found in the LICENSE file.
 -->
 <!--
         Note: Static (i.e., not template-generated) href and id
         attributes start with "pkg-" to make it impossible for
         them to conflict with generated attributes (some of which
         correspond to Go identifiers).
@@ skipping 145 matching lines @@
 
                         {{range .Methods}}
                                 {{$name_html := html .Name}}
                                 <h3 id="{{$tname_html}}.{{$name_html}}">func ({{html .Recv}}) <a href="{{posLink_url .Decl $.FSet}}">{{$name_html}}</a></h3>
                                 <pre>{{node_html .Decl $.FSet}}</pre>
                                 {{comment_html .Doc}}
                                 {{$name := printf "%s_%s" $tname .Name}}
                                 {{example_html $name $.Examples $.FSet}}
                         {{end}}
                 {{end}}
-                </div>
         {{else}}  {{/* not a package; is a command */}}
                 {{comment_html .Doc}}
         {{end}}
 
         {{with .Bugs}}
                 <h2 id="pkg-bugs">Bugs</h2>
                 {{range .}}
                 {{comment_html .}}
                 {{end}}
         {{end}}
@@ skipping 40 matching lines @@
                         </tr>
                 {{end}}
         {{end}}
         </table>
         {{if $.PDoc}}{{else}}
         <p>Need more packages? Take a look at the <a href="http://godashboard.appspot.com/">Go Project Dashboard</a>.</p>
         {{end}}
 {{end}}
 
 {{if $.Examples}}
-<script type="text/javascript" src="/doc/play/playground.js"></script>
 <script>
 $(document).ready(function() {
         'use strict';
         // Set up playground when each element is toggled.
         $('div.play').each(function (i, el) {
                 var built = false;
                 $(el).closest('.toggle').click(function() {
                         // Only set up playground once.
                         if (built) {
                                 return;
@@ skipping 19 matching lines @@
                                 code.closest('.input').height(h);
                         };
                         code.on('keydown', resize);
                         code.on('keyup', resize);
                         code.keyup(); // resize now.
                 });
         });
 });
 </script>
 {{end}}