public function topSpendingChartDataAction()
 {
     $xhb = $this->getXhbSession()->getModel();
     $collFilters = array('period' => $this->getRequestQuery('period') ? $this->getRequestQuery('period') : Main::app()->getConfig('DEFAULT_OPERATIONS_PERIOD'));
     $sumsData = Chart\Operation::getTopSpendingReportData($xhb, $collFilters);
     $this->setPageConfig(array('template' => 'data/json.phtml', 'mime' => 'application/json'));
     $this->getView()->setData('DATA', $sumsData);
 }