How to detect Facebook Like button pressed and trigger event?

Question

Here is the example:

• http://www.facebook.com/UEvents?v=app_4949752878&ref=ts

These guys get people to click on Like button (in Step 1) first bef

Answer 1

http://developers.facebook.com/docs/reference/javascript/FB.Event.subscribe/

FB.Event.subscribe('edge.create', function(response) {
// do something with response.session
});