$enumLib = new EnumLib();
$returnStr = $enumLib->getExamInstances($_REQUEST['count'], $_REQUEST['from']);
break;
// list exam instances available for an assessor
// list exam instances available for an assessor
case 'listexaminstancesforassessor':
include 'lib/EnumLib.php';
$enumLib = new EnumLib();
$returnStr = $enumLib->getExamsForAssessor($_REQUEST['userid']);
break;
// list exam instances available for an assessor, with additional data for caching by the app
// list exam instances available for an assessor, with additional data for caching by the app
case 'listexaminstancesforassessorforapp':
include 'lib/EnumLib.php';
$enumLib = new EnumLib();
$returnStr = $enumLib->getExamsForAssessorForApp($_REQUEST['userid']);
break;
case 'getinstancebyid':
include 'lib/EnumLib.php';
$enumLib = new EnumLib();
$returnStr = $enumLib->getExamInstanceOverviewByID($_REQUEST['id']);
break;
case 'updateinstance':
include 'lib/FormsLib.php';
include 'lib/EnumLib.php';
$formslib = new FormsLib();
$returnStr = $formslib->updateExamInstance($_REQUEST['id'], $_REQUEST['instance_name'], $_REQUEST['instance_description'], $_REQUEST['unitid'], $_REQUEST['scaleid'], $_REQUEST['ownerID']);
break;
case 'deleteinstance':
include 'lib/FormsLib.php';
include 'lib/EnumLib.php';
