//  Javascript to tag file downloads and external links in Google Analytics
//  To use, place reference to this file should be placed at the bottom of all pages, 
//  just above the Google Analytics tracking code.
//  All outbound links and links to non-html files should now be automatically tracked.
//
//  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//  Created by: 	Colm McBarron, colm.mcbarron@iqcontent.com
//  Last updated: 	12-Feb-2006
//  Augmented by Jonathan Camenisch, 16-June-2008
//    to try to handle links counted from Google cache, 
//    translate, etc.
//  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//

var thishost = document.location.host;
var base = document.getElementsByTagName("base");
if (base.length > 0)
  thishost = base[0].href.replace(/^http:\/\/|\/.*$/g, '');


var hrefs = document.getElementsByTagName("a");
var link_path = "";
for (var l = 0; l < hrefs.length; l++) {
  try {
    var link_path = hrefs[l].pathname;
    if (thishost == hrefs[l].hostname && !link_path.match(/^\/[^\/]+\.(com|org|net)/)) {
      if (link_path.match(/\.(jpg|doc|pdf|xls|ppt|zip|txt|vsd|vxd|js|css|rar|exe|wma|mov|avi|wmv|mp3)$/)) {
        addtrackerlistener(hrefs[l]);
      }
    } else {
      addtrackerlistener(hrefs[l]);
    }
  }
  catch(err) { }
}


function addtrackerlistener(obj) {
  if (obj.addEventListener) {
    obj.addEventListener('click', trackfiles, true);
  } else if (obj.attachEvent) {
    obj.attachEvent("on" + 'click', trackfiles);
  }
}

function trackfiles(array_element) {
  file_path = "";

  if (thishost != this.hostname) {
    file_path = "/" + ((array_element.srcElement) ? array_element.srcElement.hostname : this.hostname);
  }
  file_path = file_path + ((array_element.srcElement) ? "/" + array_element.srcElement.pathname + array_element.srcElement.search : this.pathname + this.search);
  pageTracker._trackPageview(file_path);
}