External API - What the hell?

Hello all,

Sorry, I'm quite new to Flash so I forgot to add the script inside the button...
Well it didn't work root of the movie trying with this:

send_button.addEventListener("click", clickListener);
function clickListener(eventObj:Object):Void {
ExternalInterface.call("jsFunc", "test");
}

So I had to do it like this, inside the button:

on (release) {
import flash.external.ExternalInterface;
ExternalInterface.call("jsFunc", "test");
}

is it possible to add: import flash.external.ExternalInterface;
outside the button using ex. global?

/A