as3 to as2

1

Please convert the following to as2 for me:

import fl.controls.TextInput;
import flash.event.*;
btn.addEventListener(MouseEvent.Click,delevt);

function delevt(e:MouseEvent)
{trace(“done”);
trace(bb.selectionBeginIndex);
var n=bb.selectionBeginIndex;
var s=bb.text.substr(0,n-1);
var end=bb.text.substr(n,ss.length);
trace(s+end);
bb.text=s+end;}

Thanks beforehand.