ActionScript 3.0 :: Open New Tab / Window For First Weblink Only

I have made the jump from AC1 to AC3 and made a simple hybrid website. I have managed to get it working without my computer exploding or sending my keyboard into my monitor, but I am having a strange problem with the very first button that is clicked. When you first navigate to the site, and click on any weblink button in the swf, it will open that link in a a new tab/window. However, once you are in that new tab/window, all the buttons target themselves like they are supposed to.

Here is the AC3 code I am using to make the buttons open a new page:
home_btn.addEventListener(MouseEvent.CLICK,gotoHom e);
function gotoHome(evtobj:Event):void{
var home:URLRequest = new URLRequest("websiteaddress");
navigateToURL(home,"self");
}