Add google analytics tag to doc header
diff --git a/doc/etc/header.html b/doc/etc/header.html
index 5c2c375..8f9f850 100644
--- a/doc/etc/header.html
+++ b/doc/etc/header.html
@@ -11,11 +11,24 @@
<link href="$relpath^tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="$relpath^jquery.js"></script>
<script type="text/javascript" src="$relpath^dynsections.js"></script>
+
$treeview
$search
$mathjax
<link href="$relpath^$stylesheet" rel="stylesheet" type="text/css" />
$extrastylesheet
+
+<!-- google analytics -->
+<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),
+ m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+ })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+ ga('create', 'UA-45382226-1', 'madlib.net');
+ ga('send', 'pageview');
+
+</script>
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
