title: AS3 AutoSize Textfield
body: <p>in AS3, I'm making this dynamic textfield that is populated from an XML file based on where the user clicks. </p>
  
  <p>The dynamic textfield has a custom scrollbar to it. My problem is that if the text inserted into the textfield is less than the previously displayed text, you can still scroll the dynamic textfield as far as the previous one. </p>
  
  <p>Is there a way to reset the textfield autoSize? </p>
  
  <p>Many thanks,</p>