anchor.diff:              if (caseId==null) {
                   $('#clinical-msg').hide();
               } else if ((typeof caseId)==(typeof '')) {
  -                $('#clinical-msg').html(formatPatientLink(caseId)+
  +                $('#clinical-msg').html("&nbsp;"+formatPatientLink(caseId)+
                       " is selected. <button type='button' onclick='csObs.fireSelection(null,null);'>Clear selection</button>");
                   $('#clinical-msg').show();
               } else if ((typeof caseId)==(typeof {})) {
  
positive.code: 
  </script>
  
  <div id="clinical-data-loading-wait">
      <img src="images/ajax-loader.gif"/>
  </div>
  
  <div id="clinical-msg"></div>
  
  <table id="summary-plot-table">
      <tr>
  
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 {
  