How to use an iframe into Drupal?

Question

Possible Duplicate:
Create an Iframe from a Drupal Website

I'd like to use an iframe inside a "page" of drupal. It means that I want to load some pages of drupal inside an iframe. Actually, if I use an html code inside a page that describes an iframe, the drupal pages that'll be loaded inside, they'll show the full page of drupal : head,footer of drupal... Is it possible to only load the real content of a page?

Do you know an iframe adaptated for drupal?

The quick and dirty way:

In node content:

<div id="extraContent"></div>
<script type="text/javascript">
    $(function() {
        $("#extraContent").load("/path/to/node .content");
    });
</script>

IMPORTANT: The code above will obviously not work if user has JavaScript disabled AND will be laggy.

The more reasonable way:

Add a "node reference" field through CCK to that node's content type and set "Full node" display to "Full node" (here is a screenshot)