Push URLs with .ppt | .doc | .pdf

JS for tracking files w Google Analytics by filename extension

  <script type="text/javascript">                  
    $(document).ready(function(){
      $('a').on('click',function(){
        var $href = $(this).attr('href');
        var $pptDoc = new RegExp(".ppt$").test($href);
        var $wordDoc = new RegExp(".doc$").test($href);
        var $pdfDoc = new RegExp(".pdf$").test($href);
        var $docType;
        function push2GA(thisURL,thisOptValue){
            _gaq.push(['_trackEvent', 'Download', thisURL, thisOptValue]);
        }       
        if($pptDoc){$docType = "PowerPoint"; push2GA($href,$docType)}
        else if($wordDoc){$docType = "Word Document"; push2GA($href,$docType)}
        else if($pdfDoc){$docType = "Adobe Acrobat PDF"; push2GA($href,$docType)}
      });
    });
  </script>