Help with: on key press -> goto and play

Hello all,

i am a designer and not so good with AS.
I have read quite some forums but did not succeed.

Here is what i want to do:

For a presentation i need to tell Flash to go to a certain Keyframe after pressing
a specific key on the keyboard.

So like:
on(release, keyPress “<a>”)
{
gotoAndPlay(“2”);
}

How can i do this?
The standard keys like <space> or arrow keys like <up> etc.are not the solution
because i need the whole keyboard keys as i want to link to many keyframes.

I am aware that the keyboard keys have the following keycodes:
http://people.uncw.edu/tompkinsj/112/flashactionscript/keycodes.htm

Can anybody help me with this?
Basicaly i just want to jump between keyframes by pressing keys and not using the mouse.

Thanks in advance!