So I was working over some things using my auto-submit script and had some trouble with textarea when using TinyMCE. Seems that TinyMCE only saved the data from the editor pane to the textarea when you press the submit button, and technically, the auto-submitter never presses the submit button. After a quick google the solution is simple, simple tell TinyMCE to save before the script goes through and submits the information. The code to do this (so you don’e have to look around) is this:

Snipplr: http://fatfolderdesign.com/60/code/javascript-auto-submit-tinymce-fix

And thats all you need. Best place to put this I think is the top of the as() function but I was able to place in in the same call as the as() function and achieve results, really, it all depends on the application.