protected function _getFileUrls( $baseUrl, $basePath, $param, stdClass $package, &$timestamp )
	{
		$timestamp = (int) $timestamp;
		$filesToDisplay = array();

		foreach( $package->fileIncludes as $singleFile )
		{
			$filename = $basePath . $singleFile->path . $singleFile->text;

			if( DIRECTORY_SEPARATOR !== '/' ) {
				$filename = str_replace( '/', DIRECTORY_SEPARATOR, $filename );
			}

			if( !is_file( $filename ) || ( $fileTime = filemtime( $filename ) ) === false ) {
				throw new MW_Jsb2_Exception( sprintf( 'Unable to read filetime of file "%1$s"', $filename ) );
			}

			$timestamp = max( $timestamp, $fileTime );
			$filesToDisplay[] = $baseUrl . $singleFile->path . $singleFile->text . $param . $fileTime;
		}

		return $filesToDisplay;
	}