Как создать новый элемент? - ZOO

defined('_JEXEC') or die('Restricted access');
class ElementTest extends Element {
	
	public function edit() {
	$html = array();
	$html[] = $this->app->html->_('control.editrow', JText::_('city'), $this->app->html->_('control.text', $this->getControlName('city'), $this->get('city'), 'size="60" maxlength="255"'));
	$html[] = $this->app->html->_('control.editrow', JText::_('str'), $this->app->html->_('control.text', $this->getControlName('str'), $this->get('str'), 'size="60" maxlength="255"'));
	$html[] = $this->app->html->_('control.editrow', JText::_('tel'), $this->app->html->_('control.text', $this->getControlName('tel'), $this->get('tel'), 'size="60" maxlength="255"'));

	return implode("\n", $html);
}

public function render($params = array()) {
	return $this->get('city'). ', ' . $this->get('str'). ', ' .$this->get('tel');
}

public function hasValue($params = array()) {
	$city = $this->get('city');
	$str = $this->get('str');
	$tel = $this->get('tel');
	return !empty($city) ||!empty($str) ||!empty($tel);

return '<table><tr><td>'.JText::_('city').'</td><td>'.$this->get('city'). '</td></tr>
<tr><td>'.JText::_('str').'</td><td>' . $this->get('str'). '</td></tr>
<tr><td>'.JText::_('tel').'</td><td>' .$this->get('tel'). '</td></tr></table>';