High scores in flash game

Hi,
I’ve implemented this PHP Scoreboard tutorial in my game:
http://www.flashkit.com/tutorials/Games/High-sco-Glen_Rho-657/index.php

The problem with it is, that after the code reads the high scores for the first time,
it endlessly tries to get data from the server (the browser states “transferring data from xxxx.xxx”).

What’s the problem?
Why doesn’t the script pause after it completed its task?

Thanks:crying: