anchor.diff:  function checkAllVersions() {
     checkAllInstalledVersions();
     checkAllNewestVersions();
  +}
  +
  +function getInstallations() {
  +  $("h1 .busy").show();
  +  $("#errors").slideUp();
  +
  +  $.getJSON("/installations.json").success(function(data) {
  +    updateErrors(data.error_dirs);
  +    $("h1 .busy").hide();
  +  }).error(function(xhr, error, exception) {
  +    console.log(xhr);
  +    console.log(error);
  +    console.log(exception);
  +    error = titelize(error);
  +    // FIXME: show server error
  +    $("h1 .busy").hide();
  +  });
   }
   
   function updateAssessments(inst) {
  
positive.code:   });
  }
  
  
  
  // hook up buttons
  
  $(function() {
    // initialize collapsers
  
negative.code:   });
  
    $(".check-all-versions.btn").click(checkAllVersions);
  
    getInstallations();
  });