disable keyboard numbers

ok folks,

here's a wierd one. I have two sort of calculation aspects in a game. I have a calculator that I'm loading as an swf into my project, and I have a small app that is coded in the exercise that the user can enter numbers. Here's the thing, when I punch in numbers into my coded app, the numbers appear on the calculator (in the display). So I figure that when I hit a keyboard key, it goes to both aspects. I wish it'd only do the one present on the screen. So I have a few ways of thinking. Go into the code of the seperate calculator app and display keyboard input. Or find a way to only apply keystrokes to whatever is on the screen. Can either of these be done?