Serialize/store a TinyMCE bookmark across page loads

Question

I have a situation where I need to save the contents of the TinyMCE editor to a database, then retrieve them later with the caret/cursor position restored.

I see in the TinyMCE documentation that it might be possible using getBookmark(), for example:

var bm = tinyMCE.activeEditor.selection.getBookmark();

However, I cannot work out how to serialize the value returned by getBookmark() If I save it to a text box like this:

$('#myTextBoxId').val(bm);

the value just shows as [Object] [Object].

Is it even possible to save the bookmark across page postbacks?

Answer 1

Thanks to @JoseM's comment, the answer is uber-simple:

var bm = tinyMCE.activeEditor.selection.getBookmark();
$('#myTextBoxId').val(JSON.stringify(bm));