Detecting keyPress in an IFRAME

Detecting keyPress in an IFRAME

Hey all,

I'm pretty sure I know the answer to this one already (NO), but I thought I'd throw it out there to see if someone knew any workarounds for something similar.

I'm using Disqus for commenting on my website.
When a user clicks the 'reply' button, a new DIV is created which contains an <iframe> that has the textarea box for the reply comment inside of it.

I was wondering if it was possible to determine a keyPress inside of this <textarea> textbox that is within the iframe?

(For completeness: I want to detect that the user is typing a reply, and 'enable' the CANCEL button for the user to cancel their comment)

Thanks for any and all help!