protected function _setStorageTimePreview($time = null) {
		$time = (int)$time;
		if ($time > 0) {
			$this->_storageTimePreview = $time;
		}
	}
protected function _setStorageTimePreview($time = null) {
		$time = (int)$time;
		if ($time > 0) {
			$this->_storageTimePreview = $time;
		}
	}
protected function _setStorageTimePreview ( $ time = null ) { $ time = ( int ) $ time ; if ( $ time > 0 ) { $ this -> _storageTimePreview = $ time ; } }
Set time for storage old preview files

@param int $time limit in seconds for storage preview file.
@return void
Set time for storage old preview files