anchor.diff:              }
   
               function editSaveDeleteButtonClicked(e, button) {
  +                clearErrorMessage();
                   var buttonClass = $w(e.target.className)[0];
                   var activityRow = $(e.target).closest('tr');
                   var editAction = "edit";
  
positive.code:                 var element = '<Activity name=\"' + activityName +'\" code=\"' + activityCode +'\" description=\"'
                          + activityDescription +'\" type=\"'+activityTypeName +'\" source=\"' + activitySource + '\"/>'
  
                  clearErrorMessage();
                  $.ajax({
                      url: psc.tools.Uris.relative("/api/v1/activities/"+encodeURIComponent(activitySource)+"/"+ encodeURIComponent(activityCode)),
                      type: 'PUT',
  
negative.code:             }
  
              function createAndSaveNewActivity() {
                  clearErrorMessage()
                  var activityCode = $('#new-inputCode').val()
                  var activitySource= $('#sources').val()
  
  