Call action script from javascript

in Flash:

if(ExternalInterface.available)
{
  ExternalInterface.addCallback("callFlashFromJS", addBooks);
}

in the html:

<div id="myForm">
  <input name="inputTextField" id="inputTextField" type="text" value="0">
  <form name="form">
  <input type="button" onclick="callFlash()" value="Call Flash" />
  </form>
  
  <script type="text/javascript">
    function callFlash()
    {
      var inputTextFieldValue = document.getElementById('inputTextField').value;
      //alert(getSWF('${application}') + inputTextFieldValue);
      getSWF('${application}').callFlashFromJS(inputTextFieldValue);
    }
  </script>
</div>