How to place text field inside a movie clip using as3

[LEFT][COLOR=#333333][FONT=Arial]I have created two text boxes one is source and another is output. I want to place the output box inside a movie clip so that i can move it. How can i place the output text box inside a movie clip ?

code is bellow,

package
{
import flash.display.Sprite;
import flash.display.Stage;
import flash.text.;
import flash.events.
;

public class CaptureUserInput extends Sprite
{
    private var myTextBox:TextField = new TextField();
    private var myOutputBox:TextField = new TextField();
    private var myText:String = "Type your text here.";

    public function CaptureUserInput()
    {
        captureText();
    }
    
    public function captureText():void
    {
        myTextBox.type = TextFieldType.INPUT;
        myTextBox.background = true;
        addChild(myTextBox);
        myTextBox.text = myText;
        myTextBox.addEventListener(TextEvent.TEXT_INPUT, textInputCapture);
    }
    
    public function textInputCapture(event:TextEvent):void
    {
        var str:String = myTextBox.text;
        createOutputBox(str);
    }
        
    public function createOutputBox(str:String):void
    {
        myOutputBox.background = true;
        myOutputBox.x = 200;
        addChild(myOutputBox);
        myOutputBox.text = str;
    }
    
}

}

[/FONT][/COLOR][/LEFT]