anchor.diff:  
           target.removeClass('deletable');
           target.addClass('spinning');
  -        $.get(
  -          '<%= manage_proposal_speakers_path(path_record) %>?speakers='+extract_speaker_frags(), {
  +        $.post(
  +          '<%= manage_proposal_speakers_path(path_record) %>', {
  +            'authenticity_token': window._token,
  +            'speakers': extract_speaker_frags(),
               'remove': speaker_id
  -          }, function(data) {
  -            $('#manage-speakers').html(data);
  +          }, function(response) {
  +            $('#manage-speakers').html(response);
               bind_remove_speakers();
               $("#add_speaker_selector").focus();
             }
  
positive.code:     $('#add-speakers-form').submit(function (event) {
        event.preventDefault();
        query = $('#speaker-search-field').val();
        $.get(
          '<%= search_proposal_speakers_path(path_record) %>?speakers='+extract_speaker_frags(), {
            'search': query
          }, function(data) {
            $('#speaker-search-results').html(data);
            bind_add_speakers();
            $("#speaker-search-field").focus();
          }
  
negative.code:           target.removeClass('addable');
            target.addClass('spinning');
            speaker_id = target.attr('speaker_id');
            $.post(
              '<%= manage_proposal_speakers_path(path_record) %>', {
                'authenticity_token': window._token,
                'speakers': extract_speaker_frags(),
                'add': speaker_id
              }, function(response) {
                $('#manage-speakers').html(response);
                bind_remove_speakers();
                $("#add_speaker_selector").focus();
                target.removeClass('spinning');
  