getParams() - Joomla 2.5: Шаблоны, разметка и макеты вывода

Fatal error: Call to a member function getParams() on a non-object in W:\html\joomla\www\components\com_rsevents\helpers\calendar.php on line 147

141	/**
142	* Initializes the calendar based on today's date
143	*/
144	function RSEventsCalendar()
145	{
146		global $mainframe;
147		$params = &$mainframe->getParams();
148		$this->_weekstart = $params->get('startday','1');
149		
150		$startday = JRequest::getVar('startday', false);
151		if ($startday !== false)
152			$this->_weekstart = $startday;
153		$this->_getEvents();
154		
155		$this->today = date('j.n.Y');
156		$this->setDate();
157	}