unlock_delete.js

  $('.unlock-btn').live('click', function(){
    $(this).closest('.btn-group').find('.btn-danger').toggleClass('disabled');
    $(this).find('i').toggleClass('icon-lock').toggleClass('icon-unlock');
  });

unlock_delete.php

HTML::macro('unlock_delete', function($url, $message = 'Confirm delete?', $class = "")
{
  return "
	<div class='btn-group'>
		<span class='btn {$class} btn-danger disabled' data-url=\"" . url($url) . "\" data-message=\"{$message}\">
			<i class='icon-remove'></i>
		</span>

		<span class='btn {$class} unlock-btn'>
			<i class='icon-lock'></i> Unlock
		</span>
	</div>
	";
});