public function get_browser_usage($form_id)
 {
     $browsers['Chrome'] = (object) array("visits" => 0, "submissions" => 0);
     $browsers['Safari'] = (object) array("visits" => 0, "submissions" => 0);
     $browsers['Internet Explorer'] = (object) array("visits" => 0, "submissions" => 0);
     $browsers['Opera'] = (object) array("visits" => 0, "submissions" => 0);
     $browsers['Android'] = (object) array("visits" => 0, "submissions" => 0);
     $browsers['iPhone'] = (object) array("visits" => 0, "submissions" => 0);
     $browsers['Firefox'] = (object) array("visits" => 0, "submissions" => 0);
     $browsers['BlackBerry'] = (object) array("visits" => 0, "submissions" => 0);
     $browsers['Other'] = (object) array("visits" => 0, "submissions" => 0);
     $temp = RM_DBManager::count_multiple('STATS', "browser_name", array('form_id' => $form_id), array('browser_name' => 'Chrome,Safari,Opera,Internet Explorer,Firefox,iPhone,Android,BlackBerry'));
     $known_browser_visits = array();
     $total_known_browser_visits = 0;
     if (is_array($temp) || is_object($temp)) {
         foreach ($temp as $stat) {
             $known_browser_visits[$stat->browser_name] = (int) $stat->count;
             $browsers[$stat->browser_name]->visits = (int) $stat->count;
             $total_known_browser_visits += $known_browser_visits[$stat->browser_name];
         }
     }
     $browsers['Other']->visits = (int) $total_known_browser_visits;
     $temp = RM_DBManager::count_multiple('STATS', "browser_name", array('form_id' => $form_id, 'submitted_on' => 'not null'), array('browser_name' => 'Chrome,Safari,Opera,Internet Explorer,Firefox,iPhone,Android,BlackBerry'));
     $known_browser_submissions = array();
     $total_known_browser_submissions = 0;
     //echo "<pre>",var_dump($browsers),"</pre>";
     if (is_array($temp) || is_object($temp)) {
         foreach ($temp as $stat) {
             $known_browser_submissions[$stat->browser_name] = (int) $stat->count;
             $browsers[$stat->browser_name]->submissions = (int) $stat->count;
             $total_known_browser_submissions += $known_browser_submissions[$stat->browser_name];
         }
     }
     $browsers['Other']->submissions = (int) $total_known_browser_submissions;
     //    echo "<pre>",var_dump($browsers),"</pre>";
     $usage = new stdClass();
     $usage->browser_submission = $known_browser_submissions;
     $usage->total_known_browser_submission = $total_known_browser_submissions;
     $usage->browser_usage = $known_browser_visits;
     $usage->total_known_browser_usage = $total_known_browser_visits;
     $usage->browsers = $browsers;
     return $usage;
 }