anchor.diff:                          $("#pv-trials-table").find("td").highlight(keywords[k]);
                       }
   
  -                    // and now the cancer keywords
  -                    var studyTermsTokens = studyTerms.split(",");
  -                    for(var k=0; k < studyTermsTokens.length; k++) {
  -                        $("#pv-trials-table").find("td").highlight(studyTermsTokens[k]);
  -                    }
  -
  -                    $(".highlight").qtip({
  -                            content: "this term was one of the " +
  -                                        "keywords used for searching clinical trials.",
  -                            style: { classes: 'ui-tooltip-light ui-tooltip-rounded' }
  -                    });
  -
  +                    // Add tooltips to the drug-keywords
  +                    $(".highlight").each(function(idx) {
  +                        var drugName = $(this).text();
  +                        var drugId = drugMap[drugName];
  +                        if(drugId != undefined) {
  +                            $(this).attr("alt", drugId);
  +                        }
  +                    });
  +                    addDrugsTooltip(".highlight");
  +
  +                    // Build the table
                       clinicalTrialsDataTable = $("#pv-trials-table").dataTable({
                           "sDom": '<"H"<"trials-summary-table-name">fr>t<"F"<"trials-show-more"><"datatable-paging"pl>>',
                           "bJQueryUI": true,
  
positive.code: <script type="text/javascript" src="js/jquery.highlight-4.js"></script>
  <script type="text/javascript">
      var keywords = [];
  
      var populateDrugTable = function() {
          var drugIds = [];
  
negative.code:         $.post("drugs.json",
                  { drug_ids: drugIds.join(",") },
                  function(data) {
                      // Reset the map
                      drugMap = {};
  
                      $("#drugs_wait").hide();
                      for(var i=0; i < data.length; i++) {
                          var drug = data[i];
  