Redirect the title field of a content type to some external url in a view I am using drupal 7 with view3

I have content type named News having many fields along with a taxonomy field named News Type, News type have terms: 'Free' and 'Premium', I am displaying News on my page through view, the problem i am facing is I need to redirect the news node to some external url like popup, if its premium news, means if its News Type field is set to premium it should not be redirected to its content, In short when premium news is viewed it should popup some message instead of showing the content of that news,and for free news it should go to the news node detail page. Please find the screenshot of view attached. Please help will be greatly appreciated. If I need to clarify please comment.
To change content link... You can try using Views Conditional Module... 

Project page says


  Views Conditional is a simple module that allows you to define
  conditionals (if xxx then yyy) with fields in views. Conditions
  include:
  
  Equal To
  
  Not Equal To
  
  Greater Than
  
  Less Than
  
  Empty
  
  Not Empty
  
  Views conditional allows you to output text based on the result of the
  condition.


If it doesn't work then you can solve it using views php module..