  <hr />
  <p><a name="diff"></a>
  This form allows you to request diffs between any two revisions of this file.
  For each of the two "sides" of the diff,
[if-any tags]
  select a symbolic revision name using the selection box, or choose
  'Use Text Field' and enter a numeric revision.
[else]
  enter a numeric revision.
[end]
  </p>
  <form method="get" action="[diff_select_action]" id="diff_select">

  <table cellpadding="2" cellspacing="0" class="auto">
  <tr>
  <td>&nbsp;</td>
  <td>
  [for diff_select_hidden_values]<input type="hidden" name="[diff_select_hidden_values.name]" value="[diff_select_hidden_values.value]"/>[end]
  Diffs between
[if-any tags]
  <select name="r1">
    <option value="text" selected="selected">Use Text Field</option>
  [for tags]
    <option value="[tags.rev]:[tags.name]">[tags.name]</option>
  [end]
  </select>
  <input type="text" size="12" name="tr1" 
         value="[if-any rev_selected][rev_selected][else][first_revision][end]"
         onchange="document.getElementById('diff_select').r1.selectedIndex=0" />
[else]
  <input type="text" size="12" name="r1"
         value="[if-any rev_selected][rev_selected][else][first_revision][end]" />
[end]

  and
[if-any tags]
  <select name="r2">
    <option value="text" selected="selected">Use Text Field</option>
  [for tags]
    <option value="[tags.rev]:[tags.name]">[tags.name]</option>
  [end]
  </select>
  <input type="text" size="12" name="tr2" 
         value="[last_revision]"
         onchange="document.getElementById('diff_select').r2.selectedIndex=0" />
[else]
  <input type="text" size="12" name="r2" value="[last_revision]" />
[end]
  </td>
  </tr>
  <tr>
  <td>&nbsp;</td>
  <td>
  Type of Diff should be a
  <select name="diff_format" onchange="submit()">
    <option value="h" [is diff_format "h"]selected="selected"[end]>Colored Diff</option>
    <option value="l" [is diff_format "l"]selected="selected"[end]>Long Colored Diff</option>
    <option value="f" [is diff_format "f"]selected="selected"[end]>Full Colored Diff</option>
    <option value="u" [is diff_format "u"]selected="selected"[end]>Unidiff</option>
    <option value="c" [is diff_format "c"]selected="selected"[end]>Context Diff</option>
    <option value="s" [is diff_format "s"]selected="selected"[end]>Side by Side</option>
  </select>
  <input type="submit" value="  Get Diffs  " />
  </td>
  </tr>
  </table>
  </form>
