public function onInit($param)
{
parent::onInit($param);
// Text Box
$textBox = new TTextBox();
$textBox->setVisible(false);
$textBox->setID("MyTextBox");
$this->panel1->getControls()->add($textBox);
$this->registerObject("MyTextBox", $textBox);
// Submit button
$button = new TActiveButton();
$button->setVisible(false);
$button->setID("MyButton");
$button->setText("Submit");
$button->attachEventHandler("OnCallback", array($this, "clickedButton"));
$this->panel1->getControls()->add($button);
$this->registerObject("MyButton", $button);
}