Trigger from iframe to parent window

Trigger from iframe to parent window

Hello. I have this structure: 

Index.html:
  2. <html>
  3. <head>
  4. <script src="jquery-1.3.2.min.js"></script>
  5. <script>
  6. $(document).ready(function(){
  7.                             $('iframe').bind('myCustomTrigger', function() {
  8. alert('hello');
  9. });
  10. });
  11. </script>
  12. </head>
  13. <body>
  14. <iframe src="iframe_file.html" width="800px" height="600px">
  15. </iframe>
  16. </body>
  17. </html>
iframe_file.html:
  3. <html>
  4. <head>
  5. <script src="jquery-1.3.2.min.js"></script>
  6. <script>
  7. $(document).ready(function(){
  8.                             $('button_click').click(function() {
  9. $(document, parent.window.document).trigger('myCustomTrigger');
  10. });
  11. });
  12. </script>
  13. </head>
  14.     <body>
  15.         <br/>
  16.         <br/>
  17.         <input type="button" value="Click me" id="button_click">
  18.     </body>
  19. </html>

This is does not work, how I can send trigger event from iframe to parent window?