/**
  * Returns the requested flash variable depending on the setting in the banner.
  * If no value is set in the banner object, the default value from TS setting
  * is returned
  *
  * @param \DERHANSEN\SfBanners\Domain\Model\Banner $banner The banner
  * @param string $flashSetting Flash settings
  * @return string
  */
 public function render($banner = null, $flashSetting = '')
 {
     $settings = $this->templateVariableContainer->get('settings');
     $retVal = '';
     switch ($flashSetting) {
         case 'wmode':
             if ($banner->getFlashWmode() != '') {
                 $retVal = $banner->getFlashWmode();
             } else {
                 $retVal = $settings['defaultFlashVars']['wmode'];
             }
             break;
         case 'allowScriptAccess':
             if ($banner->getFlashAllowScriptAccess() != '') {
                 $retVal = $banner->getFlashAllowScriptAccess();
             } else {
                 $retVal = $settings['defaultFlashVars']['allowScriptAccess'];
             }
             break;
         default:
     }
     return $retVal;
 }