Solution to store an address and an email for In Memory Of (IMO) in a donation page. IMO is split out it its own fieldset and the address and email are moved there.

imo_address_email.html

<!-- Solution to store an address and an email for In Memory Of (IMO) in a donation page.
     See https://gist.github.com/salsalabs/e6e32735607f99605ae82deb8aa33040 for details. -->    
<script type="text/javascript">
  $(document).ready(function() {
    var needIhoEnhancements = $('#need-imo-enhancements');
    if (needIhoEnhancements.length > 0) {
      // Separate the IMO fields into their own fieldset.  Easier to decorate that way.
      var imo = $('strong:contains("in memory of")');
      if (imo.length > 0) {
        $('#honorof legend').html("This donation is...");
        <!-- $('strong:contains("in honor of")').parent().remove(); -->
        $('#honorof').after($('#memory-of'));
        imo.parent().remove();
        $('#memory-of')
          .append($('input[name=In_Memory_Name]').parent())
          .append($('#iho-enhancements').children());
      }
    }
  });
</script>
<div style="display: none;">
  <fieldset id="memory-of">
    <legend><strong>in Memory of</strong><em> Keep blank if none</em></legend>
  </fieldset>
  <div id="iho-enhancements">
<!-- Remove this div if you do not wish to ask for an IMO email Address -->
    <div class="formRow">
      <label for='iho-email'>In Memory Email</label>
      <input id="iho-email" name="VARCHAR0" />
    </div>
<!-- End of IMO Email Div -->
<!-- Remove this div if you do not wish to ask for a IMO mailing Address -->
    <div class="formRow">
      <label for='iho-address'>In Memory Address</label>
      <input id="iho-address" name="VARCHAR1" />
    </div>
<!-- End of IMO Address Div -->
  </div>
</div>