Display the list of values in check box - Interesting problem

I am using iterator to display list in bean with check boxas below

disable submit button

I would like to know how to disable submit button when using AJAX theme. below is the code I am using But it does not seems to work... Could anyone help me on this -- View this message in context: http://www.nabble.com/disable-submit-button-tf4030977.html#a11450471 Sent from the Strut