Score Problems

I was just reading a tutorial (http://www.flashkit.com/tutorials/Games/How_to_m-MODVDO-969/index.php) and was wondering how to do this:

I already have a dynamic text box with the instance name “score” and the variable “score”. I want to go to scene 4 when the score reaches 10,000. But the tutorial only explains how to do it when a button is pressed down. How do I get it to work when my “score” reaches 10,000?

Any suggestions?

:h: