display_message() function

hello,

i made a simple password changer site for our webmail.

i try to handle with user errors with display_message() JS function, but something wrong...

code:

. if ($_REQUEST['pass'] == "mismatch") { // passwords mismatch ?>

<script type="text/javascript"> <!-- var rcmail = new rcube_webmail(); rcmail.set_env('comm_path', 'pass.php?'); rcmail.display_message('ERROR: password mismatch!', 'warning'); rcmail.set_env('task', 'login'); rcmail.set_env('action', 'login'); rcmail.gui_object('message', 'message'); rcmail.gui_object('loginform', 'form'); --> </script>;

<? } ..

but nothing happened...

it looks like in display_message() function at this line stops the code:

if (!this.gui_objects.message)
  return false;

what may be the problem?

thank you:

a.