Editor development: synchronizing code/wysiwyg

I am working on a Dreamweaver like editor
(javascript,php,browser)
The editor should be fully functional in code-view.
(inserting/editing tags, code snippets, etc.)
I am running into this:

exchanging data from wysiwyg to code view

form.value = div.innerHTML;

linebreaks '\n' are lost, or messed up!

Apparently all wysiwyg-editors(like html-area,spaw)
have the same problem.

Anyone out there who has a clue how to keep
the linebreaks the way they were set?

Axinya

PRB: Value of outerHTML Does Not Match Original File (http://support.microsoft.com/default.aspx?scid=kb;EN-US;Q206891) download Behavior (http://msdn.microsoft.com/workshop/author/behaviors/reference/behaviors/download.asp)