First version of tab wrapper as a module. I will port this to a component next. Edit: porting to a component proved to be much harder than making a module.
It is bit "rough on the edges", so comments are welcome.
Installs and works great so far, Mikko. It can definitely help spread profile information out a bit.
Joomlapolitan zealot and a somewhat stealthy, rather passive CB3PD developer. www.constructionlounge.com
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What you ask is really really easy to code, but most likely it will compomise the security of your site. Allowing users to include any site in IFRAME is a huge security issue for you and your users.
If you do not understand why this would be an issue, I would recommend not doing it before you understand why it is a bad idea.