<p>I want to embed a wikipedia article into a page but I don't want all the wrapper (navigation, etc.) that sits around the articles.  I saw it done here: <a href="http://www.dayah.com/periodic/" rel="nofollow noreferrer">http://www.dayah.com/periodic/</a>.  Click on an element and the iframe is displayed and links to the article only (no wrapper).  So how'd they do that?  Seems like JavaScript handles showing the iframe and constructing the href but after browsing the pages javascript (<a href="http://www.dayah.com/periodic/Script/interactivity.js" rel="nofollow noreferrer">http://www.dayah.com/periodic/Script/interactivity.js</a>) I still can't figure out how the url is built.  Thanks.</p>

You could always download the site and scrap it. I think everything inside
```
<div id="bodyContent">
```
is the content of the article - sans navigation, header, footer, etc..
Don't forget to credit. ;)