public function init()
 {
     parent::init();
     $this->addElement('checkbox', 'use_category_entries', array('label' => 'Query category entries', 'isArray' => true));
     $this->addDisplayGroup(array('use_category_entries'), 'configurable_distribution_profile_general_settings', array('legend' => 'Configurable Distribution Profile- General Settings', 'decorators' => array('FormElements', 'Fieldset', array('HtmlTag', array('class' => "configurable_distribution_profile_general_settings")))));
 }