action script newbie here :-)

What I want to do is this, hand an xml file to a swf and have the swf generate a dynamic text box and button for each of the links in the xml file

a rudimentary navigation

here's the xml

<?xml version="1.0" encoding="UTF-8"?>
    <page>
    <page name="Page Name 1" url="/page-1/" />
    <page name="Page Name 2" url="/page-2/" />
    <page name="Page Name 3" url="/page-3/" />
    <page name="Page Name 4" url="/page-4/" />
    </page>

and in my fla I have a button in my library named 'nav_button'

there's a layer named actions and in frame 1 I have this

var xml:XML;
var xmlList:XMLList;
var xmlLoader:URLLoader = new URLLoader();

var button:Button = new Button();


xmlLoader.load(new URLRequest("links.xml"));

xmlLoader.addEventListener(Event.COMPLETE, xmlLoaded);

function xmlLoaded(event:Event):void
{
xml = XML(event.target.data);
xmlList = xml.children();
trace(xml.length());

for(var i:int = 0; i < xmlList.length(); i++)
{
	button = new Button();
	button.x = 25;
	button.y = i * 50 +25; 
	addChild(button);
}
}

the xml imports fine, but when it comes to the for loop and adding the buttons and text boxes to the stage, I'm toast