$types = $trace->getListOfTypes();
        $res = json_encode($types);
        echo $res;
    }
}
if (isset($_POST['indicator'])) {
    if ($_POST['indicator'] == 'balance') {
        //$trace = new Trace($_POST['trace']);
        //$user = $trace->getBaseName();
        //$manager = new Indicator_Manager($user);
        $Ind = new Indicator($_POST['trace']);
        $tA = str_replace(' ', '', $_POST['typeA']);
        $tB = str_replace(' ', '', $_POST['typeB']);
        $TypeObsel = array($tA, $tB);
        if (isset($_POST['after']) && isset($_POST['before'])) {
            $res = json_encode($Ind->balance($_POST['after'], $_POST['before'], $TypeObsel));
        } else {
            $res = json_encode($Ind->balance(null, null, $TypeObsel));
        }
        echo $res;
    }
}
if (isset($_POST['indicator'])) {
    if ($_POST['indicator'] == 'classification') {
        if (isset($_POST['trace'])) {
            $Ind = new Indicator($_POST['trace']);
        }
        if (isset($_POST['after']) && isset($_POST['before'])) {
            $res = json_encode($Ind->classification($_POST['after'], $_POST['before']));
        } else {
            $res = json_encode($Ind->classification(null, null));