Get editor contents as Element instead of text

How do I get the contents of the editor as an element/object in JavaScript? I want to be able to loop through it in Mootools and modify some stuff.

Something like this:
content = editor.getContentAsElement(); // <<<<<<<<< This doesn't exist, how do I do it?
content.getElements('.inline-content-data').each(function(contentContainer) {
...
});

Thanks!