PopUp!

1

I am making a small mini game in flash with aobut 10 levels and i as for my inventory goes i want it so when your on a frame which is a level for a inventory to pop up when u hit a certian key. If i make a inventory page on the 2 frame. and on frame 1 they are playing and hit for example space how could i make it the second frame aka inventory pops up to take a small portion of the screen??? Thanks in advanced