anchor.diff:  	    var options4 = {
                 title: 'Number of Altered Cases for Each Cancer Study w/o Mutation Data (' + genesQueried + ')',
                 hAxis: {title: 'Cancer Study'},
  -              colors: ['#aaaaaa',  '#008000', '#002efa', '#ff2617', '#eeeeee'],
  +              colors: multipleGenes ? ['#aaaaaa', '#eeeeee'] : ['#aaaaaa',  '#008000', '#002efa', '#ff2617', '#eeeeee'],
                 legend: {
                   position: 'bottom'
                 },
  
positive.code:     ServletXssUtil servletXssUtil = ServletXssUtil.getInstance();
      String geneList = servletXssUtil.getCleanInput(request, QueryBuilder.GENE_LIST);
  
      //  Prepare gene list for URL.
      //  Extra spaces must be removed.  Otherwise AJAX Load will not work.
      geneList = Utilities.appendSemis(geneList);
      geneList = geneList.replaceAll("\\s+", " ");
      geneList = URLEncoder.encode(geneList);
  %>
  
  <jsp:include page="global/header.jsp" flush="true"/>
  
negative.code:         var cancerStudyNames = [<%=studiesNames%>];
          var numOfStudiesWithMutData = <%=cancerStudiesWithMutations.size()%>;
  
          if(!multipleGenes) {
              histogramData.addColumn('string', 'Cancer Study');
              histogramData.addColumn('number', 'Multiple Alterations');
              histogramData.addColumn('number', 'Mutation');
              histogramData.addColumn('number', 'Deletion');
              histogramData.addColumn('number', 'Amplification');
  
              histogramData2.addColumn('string', 'Cancer Study');
              histogramData2.addColumn('number', 'Multiple Alterations');
              histogramData2.addColumn('number', 'Mutation');
              histogramData2.addColumn('number', 'Deletion');
              histogramData2.addColumn('number', 'Amplification');
  
              histogramData3.addColumn('string', 'Cancer Study');
              histogramData3.addColumn('number', 'Multiple Alterations');
              histogramData3.addColumn('number', 'Mutation');
              histogramData3.addColumn('number', 'Deletion');
              histogramData3.addColumn('number', 'Amplification');
              histogramData3.addColumn('number', 'Not altered');
  
              histogramData4.addColumn('string', 'Cancer Study');
              histogramData4.addColumn('number', 'Multiple Alterations');
              histogramData4.addColumn('number', 'Mutation');
              histogramData4.addColumn('number', 'Deletion');
              histogramData4.addColumn('number', 'Amplification');
              histogramData4.addColumn('number', 'Not altered');
          } else {
              histogramData.addColumn('string', 'Cancer Study');
              histogramData.addColumn('number', 'Altered Cases');
  
              histogramData2.addColumn('string', 'Cancer Study');
              histogramData2.addColumn('number', 'Altered Cases');
  
              histogramData3.addColumn('string', 'Cancer Study');
              histogramData3.addColumn('number', 'Altered Cases');
              histogramData3.addColumn('number', 'Not Altered Cases');
  
              histogramData4.addColumn('string', 'Cancer Study');
              histogramData4.addColumn('number', 'Altered Cases');
              histogramData4.addColumn('number', 'Not Altered Cases');
          }
  
          for(var i=0; i < cancerStudies.length; i++) {
              if(i < numOfStudiesWithMutData ) {
                  if(!multipleGenes) {
                      histogramData.addRow([cancerStudyNames[i], 0, 0, 0, 0]);
                      histogramData3.addRow([cancerStudyNames[i], 0, 0, 0, 0, 0]);
                  } else {
                      histogramData.addRow([cancerStudyNames[i], 0]);
                      histogramData3.addRow([cancerStudyNames[i], 0, 0]);
                  }
              } else {
                  if(!multipleGenes) {
                      histogramData2.addRow([cancerStudyNames[i], 0, 0, 0, 0]);
                      histogramData4.addRow([cancerStudyNames[i], 0, 0, 0, 0, 0]);
                  } else {
                      histogramData2.addRow([cancerStudyNames[i], 0]);
                      histogramData4.addRow([cancerStudyNames[i], 0, 0]);
                  }
              }
  
          }
  