Typically, if it were a regular page-by-page website, I would install the analytics javascript before the body tag.
But, with a site where content is on overlays, how can analytics be installed to track views? (i.e. a one page portfolio site)
Thanks for any insight!
In javascript that calls the overlay, you can add:
_gaq.push(['_trackPageview', '/url/of/page']);
or:
ga('send','pageview','/url/of/page');
See Tracking Google Analytics Page Views with Angular.js. Even though I'm not sure if you are using something like Angular or just straight javascript, you could use a similar technique described there with hash urls that are set when a user clicks on a different part of the page, that way you could track how a user interacts with your single page site by making different urls for their interactions.
For more information see Pushing Functions onto the Queue.
