How do i make a key press button

[Ecuder]

Im trying to make a game that has arrow keys used at just the right time to make somthing diffrent happen in the time line, What im asking is:

How Can i make some action script that lets me use arrow keys as like a button without stoping stardard play

~Example:~ A guy is runing down a bridge when a plank falls out. The character gets an explanion point above his head "!" and the player (You/Me) press the up key on that precise moment. >>Cause<< the up key made the time line skip to frame 48 (a few frames from that one) and makes it look like you made the jump.

Please help me out!

Thanks!! ^-^

[enpstudios]

var myListner:Object;
myListener = new Object();
myListener.onKeyDown = function() {
	if (Key.isDown(Key.UP)) {
		_root.gotoAndPlay(48);
	}
};
Key.addListener(myListener);

[Ecuder]

var myListner:Object;
myListener = new Object();
myListener.onKeyDown = function() {
	if (Key.isDown(Key.UP)) {
		_root.gotoAndPlay(48);
	}
};
Key.addListener(myListener);

how can i use that for and up and and down arrow key at the same time? ::Edit::