AS2.0 need a timer slide bar

I can't seem to wrap my head around this idea and any help would be greatly accepted.

I am using AS2 in an audio recorder. I have everything done and tested and recording and playback of the audio is working great.

Now I need to make a slider that moves left to right as the sound is being recording. I want to set a time limit of 5 minutes for each recording. I want a visual slide bar that corresponds to how long the record button has been pressed. I don't want the slider to be dragable, just want it to move with the recording time.

If I use getTimer() it starts as soon as the movie starts, right? so how can I make the 5 minute limit wait until recording begins and limit the recording to 5 minutes, visually?

~MoN