enigma1 - 6:01 pm on Nov 22, 2011 (gmt 0)
They aren't impossible they're controllable.
Now if your server requests the content from another server is in essence a client. You can then modify the content anyway you want. So if the button you're looking for has an id (you can add one if it doesn't exist) use the id with the jquery live event. The click event won't work just like that because the content is dynamically loaded. And you don't need an iframe in this case.