Here's how they tell you to do it in the docs.
<form method="post" action="process.php">
<div class="wysiwyg">Click here to edit the first section of content!</div>
<input type="submit">
</form>
Then in the head of the document:
tinymce.init({ selector: '.wysiwyg',
inline: true,
etc...
But I need to assign a name to the content of the div so my php processing page can get the content. How would I do this?
I tried to change to the get method, and it seems to use "mce_0" as a name.