Text movie/textmovie

hi all.

I am trying to build a form, in that form Ive made a movieclip wich is supose to be some kind of checkbox, now after you click the checkbox a textfield behind opens, in there peeps can type a digit, now what i want is that the text what is typed in that movieclip DIRECTLY goes to a textfield in the root in another textfield so not after pressing another button again.(the field in the root is hidden btw).

is this possible if yes , can you pls help me out a lil here.
thx in advance, greets