title: Using Magento 1.4's WYSIWYG editor on custom admin pages
body: <p>Anyone know how to get the new 1.4 WYSIWYG editor (TinyMCE) working with custom admin pages?</p>
  
  <p>I have some modules I made that have input fields in the admin->system->config section, and I’d like to get the new editor to show on the textareas there, but I can't find where they are defined.</p>