This may be a dumb question, but I want to use iframes to mask the url on my site so that no matter where on my site the user goes to, they will always see the short url (http://www.sitename.com) instead of (http://www.sitename.com/modules/modulename/module.php).

My question is, do I have to have a main 'theme.html' file that has the iframe code in it and then have it include a 'content.html' file within the iframe that has the actual theme elements?