Pop Up Pages Being Indexed, Seen As Duplicate Content

[andertoons]

I offer users the opportunity to email and embed images from my website.  (See this page http://www.andertoons.com/cartoon/6246/ and look under the large image for "Email to a Friend" and "Get Embed HTML" links.)

But I'm seeing the ensuing pop-up pages (Ex: http://www.andertoons.com/embed/5231/?KeepThis=true&TB_iframe=true&height=370&width=700&modal=true and http://www.andertoons.com/email/6246/?KeepThis=true&TB_iframe=true&height=432&width=700&modal=true) showing up in Google.

Even worse, I think they're seen as duplicate content.

How should I deal with this?

[Tompt]

I've suggested using robots.txt in the other question you've posted and I think the same applies here. Do any non-duplicate pages appear in the /embed/ or /email/ directories?