array_push($aDropFields, 'technology_button_active_image_url_drop');
array_push($aDropFieldTypes, 'image');
// if form was submitted:
if ($_POST['commit'] == "Cancel") {
    header("Location:technology_list.php?cat=" . $_REQUEST['cat']);
    exit;
}
if ($_POST['commit'] == "Save Technology") {
    if ($id == 0) {
        // insert
        $obj = new Technology();
        $obj->CategoryId = $_REQUEST["cat"];
        $obj->TechnologyName = $_REQUEST["technology_name"];
        $obj->TechnologyHeadline = $_REQUEST["technology_headline"];
        $obj->LinkUrl = 'tech-standard.php';
        $obj->create();
        $obj->handleFileUploads();
        $obj->handleDropFileUploads($aDropFields[0], 'TechnologyButtonImageUrl');
        $obj->handleDropFileUploads($aDropFields[1], 'TechnologyButtonActiveImageUrl');
        // redirect to listing list
        header("Location:technology_list.php?cat=" . $_REQUEST['cat']);
        exit;
    } else {
        // update
        $obj = new Technology($_REQUEST["id"]);
        $obj->TechnologyName = $_REQUEST["technology_name"];
        $obj->TechnologyHeadline = $_REQUEST["technology_headline"];
        $obj->update();
        $obj->handleFileUploads();
        $obj->handleDropFileUploads($aDropFields[0], 'TechnologyButtonImageUrl');
        $obj->handleDropFileUploads($aDropFields[1], 'TechnologyButtonActiveImageUrl');