Using Piwik for a Single Page Application

Building a single page / fat client application and I'm wondering what the best practice is for including and tracking using http://piwik.org/ I'd like to use Piwik in a way that is architecturally sound and replacable with a different library in the future. It seems that there are two basic options for tracking with Piwik: - Fill up a global `_paq` array with commands, then load the script (it's unclear to me how to record future "page" views or change variables though) - Get and use `var myTracker = Piwik.getTracker()` `_paq` approach: ``` myApp.loadAnalytics = function() { /* dynamically insert piwik.php script */ } myApp.track = function(pageName) { window._paq = window._paq || []; _paq.push(['setDocumentTitle', pageName]); _paq.push(["trackPageView"]); } myApp.loadAnalytics() // Then, anywhere in the application, and as many times as I want (I hope :) myApp.track('reports/eastWing') // Track a "page" change, lightbox event, or anything else ``` `.getTracker()` approach: ``` myApp.loadAnalytics = function() { /* dynamically insert piwik.php script */ } myApp.track = function(pageName) { myApp.tracker = myApp.tracker || Piwik.getTracker('https://mysite.com', 1); myApp.tracker.trackPageView(pageName); } myApp.loadAnalytics() // Then, anywhere in the application, and as many times as I want (I hope :) myApp.track('reports/eastWing') // Track a "page" change, lightbox event, or anything else ``` Are these approaches functionally identical? Is one preferred over another for a single page app?