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// gaAddons.js
// @Author Stéphane Hamel - shamel@immeria.net - http://immeria.net
// See http://code.google.com/p/gaddons/people/list for contributors
//
// Google Groups forum: http://groups.google.com/group/gaaddons
// Google Code repository: http://code.google.com/p/gaddons/
//
///////
// License: Version: MPL 1.1
// The contents of this file are subject to the Mozilla Public License Version
// 1.1 (the "License"); you may not use this file except in compliance with
// the License. You may obtain a copy of the License at
// http://www.mozilla.org/MPL/
//
// Software distributed under the License is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
// for the specific language governing rights and limitations under the
// License.
//
// Changelog:
// v2.8.1 - May 19 2010 - Add functionality to track EVENT and PV at the same time - JD
// v2.8 - Jan. 9 2010 - Fix link for document download when image inside anchor
// v2.7 - Nov. 10 2009 - Further improvement to outbound links tracking
// v2.6 - Oct. 22 2009 - Fix outbound link sometime showing //
// v2.5 - Jun. 1st 2009 - Make sure to load at "onload", rewritten as an object
// v2.4 - Apr. 21st 2009 - Fix trackPageview() syntax
// v2.3 - Apr. 10th 2009 - Fix logic issues. Add tracking of mailto links. Allow tracker to be named something else than pageTracker
// v2.2 - Mar. 20nd 2009 - Fix issue with tracking download docs on current domain
// v2.1 - Jan. 22nd 2009 - Set bUseEventForOutbout and bUserEventForDownload to toggle use of Events or Page Views
// v2.0 - Jan. 2009 - Use Google Analytics Events to track downloads and external links
// v1.0 - Inspired by the work of Justin Cutroni - Google Analytics Short Cut - http://gashortcut.com/
///////
/*
* @fileoverview Wrapper for gaAddons
*/
var bUseEventForOutbound = true; //Modified to track EVENT and PV for each instance
var bUsePageForOutbound = true;
// Set to false to use disable trackPageview and Events for outbount links
var bUseEventForDownload = true; //Modified to track EVENT and PV for each instance
var bUsePageForDownload = true;
// Set to false to disable trackPageview or Events for downloads
var gaA_fileTypes = new RegExp(/\.(docx*|xlsx*|pptx*|exe|zip|pdf|xpi)$/i);
// Indicate each file extension that needs to be tracked, gaA_fileTypes is the regular expression that matches downloadable files
   //var gaA_pageTracker = pageTracker;
// Should be set to the name of your tracker variable
/// No need to change anything below this line
/**
* @class ga Addons component.
* This class encapsulates all logic for the Google Analytics addons
* @constructor
*/
var gaAddons = function() {
   /**
   * startListening: add a new listner for onclick event, handle Mozilla or IE methods
   * @param {Object} obj HREF object to listen to
   * @param {String} evnt event type (usually "click")
   * @param {Object} func Function to call when evnt is triggered
   */
   var startListening = function(obj, evnt, func) {
      if (obj.addEventListener) obj.addEventListener(evnt, func, false);
      else if (obj.attachEvent) obj.attachEvent("on" + evnt, func);
      }
   /**
   * trackDocument: make GA call when downloading one of detected file extension, use trackEvent() or trackPageView() methods
   * @param {Object} evnt Object where the event happened
   */
   var trackDocument = function(evnt) {
      evnt = evnt || event;
      var elmnt = evnt.srcElement || evnt.target;
      if (elmnt) {
         while (elmnt.tagName != "A") elmnt = elmnt.parentNode;
		}
      var pathname = ("/" + elmnt.pathname).replace(/\/\//,'');
	  // Modified to use PVs & Events
	  //bUseEventForDownload ? gaA_pageTracker._trackEvent("download", "click", pathname) : debug=1; 
	  //Modified to use async tracking
	  bUseEventForDownload ? _gaq.push(['_trackEvent','download', 'click', pathname]) : debug=1; 
	  //bUsePageForDownload ? gaA_pageTracker._trackPageview("/vpv/download" + pathname) : debug=1;
	  bUsePageForDownload ? _gaq.push(['_trackPageview','/vpv/download' + pathname]) : debug=1;
      }
   /**
   * trackExternalLink: make GA call when clicking an outbound link, use trackEvent() or trackPageView() methods
   * @param {Object} evnt Object where the event happened
   */
   var trackExternalLink = function(evnt) {
      evnt = evnt || event;
      var elmnt = evnt.srcElement || evnt.target;
      if (elmnt) {
         while (elmnt.tagName != "A") elmnt = elmnt.parentNode;
         if (/http/.test(elmnt.protocol)) { url = elmnt.href.substr(elmnt.href.indexOf('//')+2,Infinity);
		 //bUseEventForOutbound ? gaA_pageTracker._trackEvent("outbound", "click", url) : debug=1;
		 bUseEventForOutbound ? _gaq.push(['_trackEvent','outbound','click', url]) : debug=1;
		 //bUsePageForOutbound ? gaA_pageTracker._trackPageview(("/vpv/outbound/" + url)) : debug=1;
		 bUsePageForOutbound ? _gaq.push(['_trackPageview','/vpv/outbound/' + url]) : debug=1;
         }
		 if (elmnt.protocol == "mailto:") { 
			//bUseEventForOutbound ? gaA_pageTracker._trackEvent("mailto", "click", elmnt.href.replace(/mailto:/, "")) : gaA_pageTracker._trackPageview("/vpv/mailto/" + elmnt.href.replace(/mailto:/));
			//bUseEventForOutbound ? gaA_pageTracker._trackEvent("mailto", "click", elmnt.href.replace(/mailto:/, "")) : debug=1;
			bUseEventForOutbound ? _gaq.push(['_trackEvent','mailto', 'click', elmnt.href.replace(/mailto:/, "")]) : debug=1;
			//bUsePageForOutbound ? gaA_pageTracker._trackPageview("/vpv/mailto/" + elmnt.href.replace(/mailto:/)) : debug=1;
			bUsePageForOutbound ? _gaq.push(['_trackPageview','/vpv/mailto/' + elmnt.href.replace(/mailto:/)]) : debug=1;
		 }
      }
   else {
      if (/http/.test(this.protocol)) { url = this.href.substr(this.href.indexOf('//')+2,Infinity);
		  //bUseEventForOutbound ? gaA_pageTracker._trackEvent("outbound", "click", url) : gaA_pageTracker._trackPageview("/vpv/outbound/" + url);
		  //bUseEventForOutbound ? gaA_pageTracker._trackEvent("outbound", "click", url) : debug=1;
		  bUseEventForOutbound ? _gaq.push(['_trackEvent','outbound', 'click', url]) : debug=1;
		  //bUsePageForOutbound ? gaA_pageTracker._trackPageview(("/vpv/outbound/" + url)) : debug=1;
		  bUsePageForOutbound ? _gaq.push(['_trackPageview','/vpv/outbound/' + url]) : debug=1;
      }
	   if (this.protocol == "mailto:"){ 
	   		//bUseEventForOutbound ? gaA_pageTracker._trackEvent("mailto", "click", this.href.replace(/mailto:/, "")) : gaA_pageTracker._trackPageview("/vpv/mailto/" + this.href.replace(/mailto:/));
			bUseEventForOutbound ? _gaq.push(['_trackEvent','mailto', 'click', this.href.replace(/mailto:/, "")]) : debug=1;
			bUsePageForOutbound ? _gaq.push(['_trackPageview','/vpv/mailto/' + this.href.replace(/mailto:/)]) : debug=1;
	   }
   }
}
/**
* Initialize gaAddons
*/
//_gaq.push(function(){	
	_gaq.push(['myTracker._setAccount', 'UA-16872235-1']);	
	if (document.getElementsByTagName){ //&& typeof gaA_pageTracker == "object") {
	var hrefs = document.getElementsByTagName('a');
	for (var l = 0, m = hrefs.length; l < m; l++) if (gaA_fileTypes.test(hrefs[l].pathname)) startListening(hrefs[l], "click", trackDocument);
	else if (hrefs[l].hostname != location.hostname) startListening(hrefs[l], "click", trackExternalLink);
	}
	}
	if (window.addEventListener) // Standard
	window.addEventListener('load', gaAddons, false);
	else if (window.attachEvent) // old IE
	window.attachEvent('onload', gaAddons);
//}
/// EOF ///