Google Analytics in ADF using javascript

Avoid create the ga.js duplicate.

js file googletracker.js 

function startTrace(){

    (function() {
        var scripts= document.getElementsByTagName('script');
        var path= scripts[0].src.split("/")[3];
        if(path != "ga.js"){
            var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
            ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
            var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
        }else{
            s = document.getElementsByTagName('script')[0]; s.remove();
            s = document.getElementsByTagName('script')[0];//get script[0] again
            ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
            ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
            s.parentNode.insertBefore(ga, s);
        }
    })();
    
    var _gaq = _gaq || [];
  
    _gaq.push(['_setAccount', 'UA-xxxxxxx-x']);
    _gaq.push(['_trackPageview']);

     alert('inside function: '  + document.title);

}                 

In the templat page  add

<af:resource source="/googletracker.js" type="javascript"/>

<af:resource type="javascript">  

startTrace();
  </af:resource>