Java EE (Java Enterprise Edition) General Discussion

Hello, my question is this (basically, I'm building a "social" application for one of the social networks out there,
but I'm using a java servlet as my back-end server, though I don't know if it matters to my question) -

I want to insert an iframe to my application, but I didn't find good material on how to use this, and what to add to my servlet
for completing the communication with the iframe - can anyone give an example maybe, or a link to a good piece of code.

Basically, what I want for my application is to simply allow a user to record a voice message, and save it somewhere,
and for that I need to use a java library, and this is why I thought building it with an iframe that will directly communicate with my java servlet. - IS THIS A GOOD IDEA?


thanks :)

Kogan.