title: access cookie in content script in google chrome extension
body: <p>I have simple extension in Google chrome. The content script is a js file with a simple alert statement. Now I want to get the value of cookie by name 'sid'. If i use $.cookie('sid'), it's just not working. I am not sure how to use the chrome.cookie to get this working.</p>
  
  <p>All I want to do is store the value of a cookie in a variable.</p>
  
  <p>Please help </p>