Facebook announced Friday a new JavaScript client library that will allow Facebook apps to be displayed on any website.

The client library allows users to make Facebook API calls from any web site and create Ajax Facebook applications on that website.

Wei Zhu from Facebook explains the benefits:

Since the library does not require any server-side code on your server, you can now create a Facebook application that can be hosted on any web site that serves static HTML. An application that uses this client library should be registered as an iframe type. This applies to either iframe Facebook apps that users access through the Facebook web site or apps that users access directly on the app’s own web sites. Almost all Facebook APIs are supported.   Read more .  .  .