Adressing a button to textfield within movieclip symbol

hi.

i have a page in the site (which is a movie clip, it’s not scane 1)
in the page i have a movie clip symbol, called “liran” (the instance name) and within it i have a text box, (dynamic text and scrollable) which called “amir”.
on the page i have a button i want to do the scroll action. but i don’t know how to target the command to this text box. when i tried:
on (press) {
liran.amir.scroll++;
}

it didn’t work…

(when i just deleted the movie clip and the text was on the page itself.
the command
on (press) {
amir.scroll++;
}
did worked…

i want to have the text as it is. within the movieclip (liran) if it is possible

please help me

thanks a lot