Button AS3 Issue

Question

I have 2 buttons on my stage linking to two different sites.
I have each button on its own layer with its own instance name and
the code for each button on its own separate layer.
Btn1.addEventListener(MouseEvent.CLICK, loadPage);
function loadPage(event:MouseEvent):void{
var myURL:URLRequest = new URLRequest("
http://www.adobe.com/");
navigateToURL(myURL,"_blank");
Btn2.addEventListener(MouseEvent.CLICK, loadPage);
function loadPage(event:MouseEvent):void{
var myURL:URLRequest = new URLRequest("
http://www.yahoo.com/");
navigateToURL(myURL,"_blank");
The first button worked, though when I added the second, I
get this error:
1021: Duplicate function definition.

Answer 1

One of the approaches can be holding references to the clicked button and frame in wich the click occured. here may be bugs in the code - this is just a concept:
//handle events for buttons...
home.addEventListener(MouseEvent.CLICK, clickSection);
design.addEventListener(MouseEvent.CLICK, clickSection);
photography.addEventListener(MouseEvent.CLICK, clickSection);
about.addEventListener(MouseEvent.CLICK, clickSection);
contact.addEventListener(MouseEvent.CLICK, clickSection);
company.addEventListener(MouseEvent.CLICK, clickSection);
// currently clicked button
var currentClick:DisplayObject;
// return frame
var returnFrame:int = 0;
function clickSection (evtObj:MouseEvent) {
     //trace shows what's happening.. in the output window
     trace ("The "+evtObj.target.name+" button was clicked!")
     // go to the section clicked on...
     if (currentClick && evtObj.currentTarget == currentClick) {
          currentClick = null;
          gotoAndStop(returnFrame);
     else {
          gotoAndStop(evtObj.currentTarget.name);
          currentClick = evtObj.currentTarget;
          returnFrame = MovieClip(this).currentFrame;