public static File moveFile(File sourceFile, File destinationDir)
	{
		if (destinationDir == null || !destinationDir.isDirectory ())
			return null;
		
		File movedFile = new File (destinationDir.getAbsolutePath () + File.separator
				+ sourceFile.getName ());
		
		if (sourceFile.renameTo (movedFile))
			return movedFile;
		
		return null;
	}