Missing randomRange?

Hello. I’ve been doing some searching around, and for my most recent project I need to use the randomRange() funtion. However, my copy of Flash MX '04 doesn’t seem to have the capability… I get the following output from flash:

“There is no method with the name ‘randomRange’”

Am I just using the wrong version of flash for this? Or, is this an update I can download or something? I’ve tried using my flash help files to search for this as well, and I can’t find anything about it.

Is there a simple work-around that any of you could recommend?