How can I address iframe body??

How can I address iframe body??


Hello, I want to manipulate the body of an iframe.... Its because i'm
working with the TinyMCE...
But i cant address with'im . All the items in Google are with contents
() function, but and I am using jQuery 1.1.2 and no exists for this
version.
Somebody knows how can i do this?
Thanks, and greetings from Argentina