title: flash as2 textfield - enter key issue
body: <p>I have a search box in my flash file and I'm trying to have it execute a getURL() when the enter key is pressed inside the text field, but nothing is happening. Can someone let me know what the issue is?</p>
  
  <pre><code>this.createTextField("dynamic_txt", 1, 115, 9, 138, 22);
  dynamic_txt.type = "input";
  dynamic_txt.multiline = false;
  dynamic_txt.wordWrap = false;
  var my_fmt:TextFormat = new TextFormat();
  my_fmt.font = "Arial";
  my_fmt.size = 12;
  my_fmt.color = 0x000000;
  my_fmt.underline = false;
  dynamic_txt.text = "This is my first test field object text.";
  dynamic_txt.setTextFormat(my_fmt);
  
  button_search.onRelease=function(){
      trace("Search Button");
      getURL("http://www.website.com/?s="+dynamic_txt.text, "_blank");
  }
  
  dynamic_txt.onKeyDown = function() {
      trace("Pressed Enter");
      if (Key.isDown(Key.ENTER)) {
              trace("You Pressed Enter");
          getURL("http://www.website.com/?s="+dynamic_txt.text, "_blank");
      }
  };
  </code></pre>