From 8a77cd5953daddc28b127e92ecb9a66ee8414549 Mon Sep 17 00:00:00 2001
From: Simon Holywell <simon@emosaic.co.uk>
Date: Mon, 13 Jul 2015 11:48:15 +0100
Subject: [PATCH] Add some more ancillilary info

---
 _includes/foot.html         |  2 +-
 _includes/head.html         |  2 +-
 _includes/sqlstyle.guide.md |  2 +-
 scripts.js                  | 54 ++++++++++++++++++++++++++++++++++++-
 4 files changed, 56 insertions(+), 4 deletions(-)

diff --git a/_includes/foot.html b/_includes/foot.html
index fcf80e9..e68d47a 100644
--- a/_includes/foot.html
+++ b/_includes/foot.html
@@ -5,7 +5,7 @@
             SQL style guide
         </span> by
         <a xmlns:cc="http://creativecommons.org/ns#"
-           href="https://www.simonholywell.com"
+           href="https://www.simonholywell.com/?utm_source=sqlstyle.guide&utm_medium=link&utm_campaign=footer-licence"
            property="cc:attributionName"
            rel="cc:attributionURL">
             Simon Holywell
diff --git a/_includes/head.html b/_includes/head.html
index 275d508..e6fe552 100644
--- a/_includes/head.html
+++ b/_includes/head.html
@@ -5,7 +5,7 @@
     <div class="wrap">
         <h1 itemprop="name">SQL Style Guide</h1>
         <p class="author" itemprop="author">by 
-            <a href="https://www.simonholywell.com" itemprop="url"><span itemprop="name">Simon Holywell</span></a> &middot;
+            <a href="https://www.simonholywell.com/?utm_source=sqlstyle.guide&utm_medium=link&utm_campaign=header" itemprop="url"><span itemprop="name">Simon Holywell</span></a> &middot;
             <a href="https://twitter.com/treffynnon">@Treffynnon</a>
         </p>
         <p class="twitter"><a href="https://twitter.com/share" class="twitter-share-button" data-url="{{ site.url }}" data-text="SQL style guide by @treffynnon: {{ site.description }}" data-size="large" data-dnt="true">Tweet</a>
diff --git a/_includes/sqlstyle.guide.md b/_includes/sqlstyle.guide.md
index 6ddae11..3eff628 100644
--- a/_includes/sqlstyle.guide.md
+++ b/_includes/sqlstyle.guide.md
@@ -1247,7 +1247,7 @@ ZEROFILL
 ZONE
 ```
 
-[simon]: https://www.simonholywell.com/
+[simon]: https://www.simonholywell.com/?utm_source=sqlstyle.guide&utm_medium=link&utm_campaign=md-document
     "SimonHolywell.com"
 [issue]: https://github.com/treffynnon/sqlstyle.guide/issues
     "SQL style guide issues on GitHub"
diff --git a/scripts.js b/scripts.js
index 3569d55..d1fc010 100644
--- a/scripts.js
+++ b/scripts.js
@@ -30,4 +30,56 @@ $(document).ready(function(){
             window.location.hash = target;
         });
     });
-});
\ No newline at end of file
+});
+
+// http://exisweb.net/link-tracking-universal-analytics
+(function trackOutbounds() {
+    var hitCallbackHandler = function(url,win) {
+        if (win) {
+            window.open(url, win);
+        } else {
+            window.location.href = url;
+        }
+    };
+    
+    var addEvent = function(el, eventName, handler) {
+    
+        if (el.addEventListener) {
+            el.addEventListener(eventName, handler);
+            } else {
+            el.attachEvent('on' + eventName, function(){
+                handler.call(el);
+            });
+        }
+    };
+    
+    if (document.getElementsByTagName) {
+        var el = document.getElementsByTagName('a');
+        var getDomain = document.domain.split('.').reverse()[1] + '.' + document.domain.split('.').reverse()[0];
+        
+        // Look thru each a element
+        for (var i=0; i < el.length;i++) {
+        
+            // Extract it's href attribute
+            var href = (typeof(el[i].getAttribute('href')) == 'string' ) ? el[i].getAttribute('href') : '';
+            
+            // Query the href for the top level domain (xxxxx.com)
+            var myDomain = href.match(getDomain);
+            
+            // If link is outbound and is not to this domain    
+            if ((href.match(/^(https?:|\/\/)/i)  && !myDomain) || href.match(/^mailto\:/i)) {
+            
+                // Add an event to click
+                addEvent(el[i],'click', function(e) {
+                    var url = this.getAttribute('href'), win = (typeof(this.getAttribute('target')) == 'string') ? this.getAttribute('target') : '';
+                    // Log even to Analytics, once done, go to the link
+                    ga('send', 'event', 'outbound', 'click', url,
+                        {'hitCallback': hitCallbackHandler(url,win)},
+                        {'nonInteraction': 1}
+                    );
+                    e.preventDefault();
+                });
+            }
+        }
+    }
+})();
\ No newline at end of file