Controlling combination of key’s

1

[SIZE=1][FONT=Verdana]How can I track combination of key’s: Ctrl+A, Ctrl+C, Ctrl+X, Ctrl+**V ** ??

I use this AS:

Thanks in advance… [/FONT][/SIZE]


[COLOR=Blue]
var listener:Object = new Object();
listener.onKeyDown = function() {
	trace(Key.getAscii());
};
Key.addListener(listener);[/COLOR]