stubbed in view code from old danbooru; only janitors can lock a wiki page

app/views/wiki_page_versions/index.html.erb

@@ -0,0 +1,70 @@
+<%= render :partial => "sidebar" %>
+
+<div class="content">
+  <% form_tag({:action => "diff"}, :method => :get) do %>
+    <%= hidden_field_tag "title", params[:title] %>
+
+    <table width="100%">
+      <thead>
+        <tr>
+          <th width="5%">From</th>
+          <th width="5%">To</th>
+          <th width="10%">IP Address</th>
+          <th width="80%">Last edited</th>
+        </tr>       
+      </thead>
+      <tfoot>
+        <tr>
+          <td colspan="2"><%= submit_tag "Compare" %></td>
+        </tr>
+      </tfoot>
+      <tbody>
+        <% @wiki_pages.each_with_index do |wiki_page, i| %>
+          <tr class="<%= cycle 'even', 'odd' %>">
+            <td><%= radio_button_tag "from", wiki_page.version, i==1, :id => "from_#{wiki_page.version}" %></td>
+            <td><%= radio_button_tag "to", wiki_page.version, i==0, :id => "to_#{wiki_page.version}" %></td>
+            <td>
+              <% if @current_user.is_admin? %>
+                <%= h wiki_page.ip_addr %>
+              <% end %>
+            </td>
+            <td><%= link_to wiki_page.updated_at.strftime("%m/%d/%Y %I:%M"), :action => "show", :title => wiki_page.title, :version => wiki_page.version %> by <%= link_to h(wiki_page.author), :controller => "user", :action => "show", :id => wiki_page.user_id %></td>
+          </tr>
+        <% end %>       
+      </tbody>
+    </table>
+  <% end %>
+
+  <script type="text/javascript">
+    var from;
+    var to;
+
+    function validateFrom(self)
+    {
+      if(Number(self.value) >= to) return false;
+      from = new Number(self.value);
+      return true;
+    }
+
+    function validateTo(self)
+    {
+      if(Number(self.value) <= from) return false;
+      to = new Number(self.value);
+      return true;
+    }
+
+    for(var i=1, elem; i <= <%= @wiki_pages.length %>; i++)
+    {
+      elem = $("from_"+i);
+      elem.onclick = function() {return validateFrom(this);};
+      if(elem.checked) from = i;
+
+      elem = $("to_"+i);
+      elem.onclick = function() {return validateTo(this);};
+      if(elem.checked) to = i;
+    }
+  </script>
+</div>
+
+
+<%= render :partial => "footer" %>