How to set/unset throbber in TinyMCE using jQuery plugin?

Question

I'm trying to manually set throbber on TinyMCE editor using jQuery plugin. Tried like that:

$('textarea.tinymce').tinymce().setProgressState(1);

but no luck - Firebug says only:

1

and nothing happens. setContents() works just fine. How to show/hide the throbber?

Answer 1

tinymce.editors[0].setProgressState(1);

works fine for me. The whole tinymce editor instance gets light grey and when performing

tinymce.editors[0].setProgressState(0);

it gets the same grey as before.