I am using the oauth method in order to allow a user to sign into my website with Twitter and Facebook. I also plan to add Yahoo! and Google as well such as Stack Overflow does. Once the user logs in with Twitter successfully they have the option of logging out. 

I want to make it to where when the 'Log out' button or link is selected, the user is logged out of my site AND TWITTER. I need it to log out of Twitter also in the case that the user is accessing my website and not Twitters. How do I do this?

Demo and example at: [develop.f12media.com](http://develop.f12media.com)
The user clicks on 'Login' at the top of the page to log in with their Twitter account.