title: this[String] can't be added into a MovieClip
body: <p>Lets say I have a MovieClip called "Box", and "String" is actually 'box' just that its not a MovieClip</p>
  
  <p>The problem I'm facing now is I can't use something like circle.addChild(this[String])</p>
  
  <p>I've tried tracing this[Strin]==Box and the result returns true.
  And when I remove circle.addChild(this[String]), it does not add the Box into it.
  BUT, when I traced is there any new object added to circle, the amount still remains the same.</p>
  
  <p>Any idea what seems to be the problem here?</p>