anchor.diff:    </head>
   
     <body data-spy="scroll" data-target=".navbar">
  -    <div id="fb-root"></div>
  -    <script>(function(d, s, id) {
  -      var js, fjs = d.getElementsByTagName(s)[0];
  -      if (d.getElementById(id)) return;
  -      js = d.createElement(s); js.id = id;
  -      js.src = "//connect.facebook.net/en_GB/all.js#xfbml=1&appId=499857166774809";
  -      fjs.parentNode.insertBefore(js, fjs);
  -    }(document, 'script', 'facebook-jssdk'));</script>
  -
       <div class="navbar navbar-fixed-top navbar-inverse">
         <div class="navbar-inner">
           <div class="container">
  
positive.code:     <title><%= content_for?(:title) ? yield(:title) : "Ask Away" %></title>
      <meta name="description" content="<%= yield(:description) %>">
      <meta name="author" content="Meg Howie">
      <meta property="fb:admins" content="1059799116"/>
      <meta property="og:title" content="<%= content_for?(:title) ? yield(:title) : 'Ask Away' %>"/>
      <meta property="og:type" content="website"/>
      <meta property="og:url" content="<%= request.original_url %>"/>
  
negative.code:     <!-- Le javascript
      ================================================== -->
      <!-- Placed at the end of the document so the pages load faster -->
      <div id="fb-root"></div>
      <script>(function(d, s, id) {
        var js, fjs = d.getElementsByTagName(s)[0];
        if (d.getElementById(id)) return;
        js = d.createElement(s); js.id = id;
        js.src = "//connect.facebook.net/en_GB/all.js#xfbml=1&appId=499857166774809";
        fjs.parentNode.insertBefore(js, fjs);
      }(document, 'script', 'facebook-jssdk'));</script>
      <script>
        (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
        (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
  