anchor.diff:  
   </script>
   
  +<div id="clinical-msg"></div>
  +
   <div id="clinical-data-loading-wait">
       <img src="images/ajax-loader.gif"/>
   </div>
  -
  -<div id="clinical-msg"></div>
   
   <table id="summary-plot-table">
       <tr>
  
positive.code:                     for (var id in caseId) {
                          ids.push(id);
                      }
                      var form = '<form method="post" action="index.do">'
                              + numSelected+' cases are selected.'
                              + '<input type="hidden" name="cancer_study_id" value="'+studyId
                              + '"><input type="hidden" name="case_set_id" value="-1">'
  
negative.code:                 if (numSelected==0) {
                      $('#clinical-msg').hide();
                  } else if (numSelected==1) {
                      $('#clinical-msg').html("&nbsp;"+formatPatientLink(id)+
                          " is selected. <button type='button' onclick='csObs.fireSelection(null,null);'>Clear selection</button>");
                      $('#clinical-msg').show();
                  } else {
  