function display($tpl = null)
{
$task = JRequest::getWord('task');
if ($task == 'editElement' || $task == 'addElement') {
$id = JRequest::getVar('elementId');
TOOLBAR_enmasse::_COUPONELEMENT_NEW();
$element = JModel::getInstance('couponElement', 'enmasseModel')->getById($id);
$this->assignRef('element', $element);
} else {
TOOLBAR_enmasse::_SMENU();
TOOLBAR_enmasse::_COUPON();
$couponBgUrl = JModel::getInstance('coupon', 'enmasseModel')->getCouponBgUrl();
$couponElementList = JModel::getInstance('couponElement', 'enmasseModel')->listAll();
$this->assignRef('couponBgUrl', $couponBgUrl);
$this->assignRef('couponElementList', $couponElementList);
}
parent::display($tpl);
}