Add Piwik javascript

js/piwik.js

@@ -0,0 +1,24 @@
+/*
+ * piwik.js
+ *analytics code for lainchan
+ * Usage:
+ *   $config['additional_javascript'][] = 'js/piwik.js';
+ *
+ */
+
+
+<!-- Piwik -->
+  var _paq = _paq || [];
+  _paq.push(["setDocumentTitle", document.domain + "/" + document.title]);
+  _paq.push(["setCookieDomain", "*.lainchan.org"]);
+  _paq.push(['trackPageView']);
+  _paq.push(['enableLinkTracking']);
+  (function() {
+    var u="//lainchan.org/piwik/";
+    _paq.push(['setTrackerUrl', u+'piwik.php']);
+    _paq.push(['setSiteId', 3]);
+    var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
+    g.type='text/javascript'; g.async=true; g.defer=true; g.src=u+'piwik.js'; s.parentNode.insertBefore(g,s);
+  })();
+<!-- End Piwik Code -->
+