$obj->handleFileUploads();
        $obj->handleDropFileUploads($aDropFields[0], 'ImageFileDark');
        $obj->handleDropFileUploads($aDropFields[1], 'ImageFileLight');
        $obj->handleDropFileUploads($aDropFields[2], 'BackgroundImageFile');
        // redirect to listing list
        header("Location:lighttest_list.php?cat=" . $_REQUEST['cat'] . "&light=" . $_REQUEST['light']);
        exit;
    } else {
        // update
        $obj = new LightTest($id);
        $obj->DarkText = $_REQUEST["dark_text"];
        $obj->LightText = $_REQUEST["light_text"];
        $obj->RgbaValue = $_REQUEST["rgba_value"];
        $obj->RgbaValueRight = $_REQUEST["rgba_value_right"];
        $obj->update();
        $obj->handleFileUploads();
        $obj->handleDropFileUploads($aDropFields[0], 'ImageFileDark');
        $obj->handleDropFileUploads($aDropFields[1], 'ImageFileLight');
        $obj->handleDropFileUploads($aDropFields[2], 'BackgroundImageFile');
        // redirect to listing list
        header("Location:lighttest_list.php?cat=" . $_REQUEST['cat'] . "&light=" . $_REQUEST['light']);
        exit;
    }
} else {
    if ($_REQUEST['mode'] == 'e') {
        //listing
        $objLightTest = new LightTest($id);
        $light_id = $objLightTest->LightId;
        $dark_text = $objLightTest->DarkText;
        $light_text = $objLightTest->LightText;
        $rgba_value = $objLightTest->RgbaValue;