Passing variables between frames

I am trying to record the last frame the movie clip is on in one scene in order to restart that movie clip at the same position on another scene.

I did a last_position = getProperty(_root.myclip, _currentframe) in scene 1 but when i click on a button in scene 1 to go to scene 2, how do pass that info on. I am new at this AS stuff.

thanks