title: wordpress comments only if user is logged in - integration with a site
body: <p>I have a website where users can create accounts and login to them. I've setup a Wordpress blog and I want registered users(on my site) to be able to make comments using their registered username and only if they're logged in to the site. They don't need to login separately in wordpress. Also I want this to be the only way you can put a comment to a post. </p>
  
  <p>Thanks</p>