using page variables in rjs templates

Hi everyone.

I have a CMS that uses a fckeditor-like WSIWYG setup. I'm writing an
ajax action that toggles the view between WSIWYG and a textarea that
shows the actual html.

To do that, I need to pull the existing content out of an iframe on
the page and reinsert it into the textarea.

page.assign(@content, $('edit').contentWindow.document.body.innerHTML)

page.replace_html "texteditor", '<textarea cols="40"
id="article_body" name="article[body]" rows="4">"#{@content}" </

'

It's giving me syntax errors on the $('edit') line, and I'm not at all
convinced that page.assign is what I'm looking for.

Help?