[Zope] Let Zope chec a internal / external link

Hello, Is is possible tolet Zope check if a link is correct. Example: I've a Photoalbum an news items. These are connected with a link. But whem i move a news item to a archive, the link becomes broken. How can I prevent this error ? Is it also possible to check external links ? 'If a link doesn't exist anymore there stilis a broken link on the website. Question Can I preven zop displaying broken links ? I know this feature from tridion CMS (my seccond love ;-) Thanks for the help. Martin Koekenberg.