I have two applications both running in Jboss.
From one application's XHTML, I want to launch a XHTML present in another application, fill in some data in the page, create an object and pass this object to the calling application.
Can someone help on how I can achieve this using SEAM, JSF and javascript?
Generally, you can't. You can use a redirect to send the user to the other application, but to pass data back you need to either:
HTH