How do I screen on screen?

How can I make a screen on top of another screen, but viewing the screen down. For example, a help screen, or customer inventory that appears above the main game screen?

thanks!

Can you just create what you need on another layer and position towards the top of the screen. Is that what you mean ?

Right. But I want to have a button on the main game screen, and the button call another screen, but the main game screen is paused behind.

Create another Layer. Then when the user presses the options button, for example, set your Help Screen layer to visible. Then when they close it, set that layer back to invisible.

Here is an example of what I use to switch between my level select buttons.

<img src="http://img842.imageshack.us/img842/7282/support014.jpg" border="0" />

EDIT: I should also mention that I just controlled a variable with the left/right buttons and made display changes based on that value. You don't need to do this. Just use On Touch > Help Button. Or w/e it is you are using.

Thanks man. I'll try it.