anchor.diff:      <script type="text/javascript">
   
               populateCategory = function() {
  -
                   if ($('searchTypeSEARCH_BY_SAMPLE').checked == true) {
  -
                       $('selectSampleCat').show();
                       $('selectExpCat').hide();
                       checkSampleCategorySelection();
                   } else if ($('searchTypeSEARCH_BY_EXPERIMENT').checked == true) {
  -
                       $('selectExpCat').show();
                       $('selectSampleCat').hide();
                       hideFilterBox('filterCharBox');
                       checkExpCategorySelection();
                   } else {
  -
                       $('selectExpCat').hide();
                       $('selectSampleCat').hide();
                       hideFilterBox('filterCharBox');
                   }
  -
               }
   
               checkSampleCategorySelection = function() {
  -
                   if ($('selectSampleCat').value == 'OTHER_CHARACTERISTICS') {
  -
                       showFilterBox('filterCharBox');
                       hideFilterBox('filterOrgBox');
                       showKeywordTxtBox();
                   } else if ($('selectSampleCat').value == 'SAMPLE_ORGANISM') {
  -
                       hideKeywordTxtBox();
                       showFilterBox('filterOrgBox');
                       hideFilterBox('filterCharBox');
  
positive.code:             }
  
              showKeywordTxtBox = function() {
                  $('keyword').show();
                  $('keywordlabel').show();
              }
  
              hideKeywordTxtBox = function() {
                  $('keyword').hide();
                  $('keywordlabel').hide();
              }
  
  
negative.code:             }
  
              checkExpCategorySelection = function() {
                  if ($('selectExpCat').value == 'ORGANISM') {
                      hideKeywordTxtBox();
                      showFilterBox('filterOrgBox');
  