///////
// gaAddons.js
// 	Author: Stéphane Hamel - shamel67@gmail.com - http://immeria.net
//  Contributors:
//	- Andy Edmonds - http://alwaysbetesting.com
//	- Damon Gudaitis - http://www.damongudaitis.com/
//	
///////
// 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:
//  v2.5 - 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 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

///////
/// 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){
		TrackDownload((evnt.srcElement) ? "/" + evnt.srcElement.pathname : this.pathname);
	}

	/**
	 * 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){
		var elmnt = evnt.srcElement;
		if (elmnt) {
			while (elmnt.tagName != "A")
				elmnt = elmnt.parentNode;
				if (/http/.test(elmnt.protocol))
					TrackOutbound(elmnt.hostname + "/" + elmnt.pathname + elmnt.search);
				if (elmnt.protocol == "mailto:")
					TrackEmail(elmnt.href.replace(/mailto:/, ""));
		}
		else {
			if (/http/.test(this.protocol))
				TrackOutbound(this.hostname + this.pathname + this.search);
			if (this.protocol == "mailto:")
				TrackEmail(this.href.replace(/mailto:/, ""));
		}
	}

	/**
	 * Initialize gaAddons
	 */
	if (document.getElementsByTagName) {
		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', function(){
        gaAddons()
    }, false);
else 
    if (window.attachEvent) // IE
        window.attachEvent('onload', function(){
            gaAddons()
        });


function TrackDownload(address)
{
	if(address.length > 0)
	{
		_gaq.push(['_trackEvent', 'download', 'click', address]);
	}
}

function TrackEmail(address)
{
	if(address.length > 0)
	{
		_gaq.push(['_trackEvent', 'email', 'click', address]);
	}
}

function TrackOutbound(address)
{
	if(address.length > 0)
	{
		_gaq.push(['_trackEvent', 'outbound', 'click', address]);
	}
}

function TrackContact(address) {
	if (address.length > 0) {
		_gaq.push(['_trackEvent', 'contactTab', 'click', address]);
	}
}

function TrackContactSubmit(address) {
	if (address.length > 0) {
		_gaq.push(['_trackEvent', 'contactSubmit', 'submit', address]);
	}
}

function TrackPhone(address) {
	if (address.length > 0) {
		_gaq.push(['_trackEvent', 'phoneClick', 'click', address]);
	}
}

function TrackWebsite(address) {
	if (address.length > 0) {
		_gaq.push(['_trackEvent', 'website', 'click', address]);
	}
}
/// EOF ///