Simple actionscript Problem

Ok Ive got a basic actionscript problem:

I have a movieclip on the main stage, called “main_exits”, and inside that another movie clip called “747_main_Deck”.

I have a button in the “main_exits” movieclip, which when pressed I want it to go to a frame labelled “symbols_circle” in the “747_main_Deck” MC.

here is the actionscript I am using (which doesnt work):


This script is obviously attached to the button which I want to be pressed.

Whats wrong with the script I am using? It comes up with a syntax error, and I dont know what i am doing wrong. Any help?

Thanks in advance!