public function __construct($attributes = array())
 {
     parent::__construct($attributes);
     /** @var $helper Hackathon_GUAEvent_Helper_Event */
     $helper = Mage::helper('hackathon_guaevent/event');
     $this->addData(array('id' => 'edit_form', 'method' => 'post', 'use_container' => true));
     $fieldset = $this->addFieldset('base_fieldset', array('legend' => $helper->__('General Information')));
     $fieldset->addField('trigger_type', 'text', array('name' => 'trigger_type', 'label' => $helper->__('Trigger Type'), 'title' => $helper->__('Trigger Type')));
     $fieldset->addField('trigger_data', 'textarea', array('name' => 'trigger_data', 'label' => $helper->__('Trigger Data'), 'title' => $helper->__('Trigger Data')));
     $fieldset->addField('event_category', 'text', array('name' => 'event_category', 'label' => $helper->__('Event Category'), 'title' => $helper->__('Event Category'), 'required' => true));
     $fieldset->addField('event_action', 'text', array('name' => 'event_action', 'label' => $helper->__('Event Action'), 'title' => $helper->__('Event Action'), 'required' => true));
     $fieldset->addField('event_label', 'text', array('name' => 'event_label', 'label' => $helper->__('Event Label'), 'title' => $helper->__('Event Label')));
     $fieldset->addField('event_value', 'text', array('name' => 'event_value', 'label' => $helper->__('Event Value'), 'title' => $helper->__('Event Value')));
 }