///////
// 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:
//  v2.4 - 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/
///////

var bUseEventForOutbound = false; // Set to false to use trackPageview for outbount links
var bUseEventForDownload = false; // Set to false to use trackPageview 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
// Initialize external link and download handlers
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", trackDocuments);
        else 
            if (hrefs[l].hostname != location.hostname) 
                startListening(hrefs[l], "click", trackExternalLinks);
}

function startListening(obj, evnt, func){
    if (obj.addEventListener) 
        obj.addEventListener(evnt, func, false);
    else 
        if (obj.attachEvent) 
            obj.attachEvent("on" + evnt, func);
}

function trackDocuments(evnt){
    bUseEventForDownload ? gaA_pageTracker._trackEvent("download", "click", (evnt.srcElement) ? "/" + evnt.srcElement.pathname : this.pathname) : gaA_pageTracker._trackPageview("/download/" + (evnt.srcElement) ? "/" + evnt.srcElement.pathname : this.pathname);
}

function trackExternalLinks(evnt){
    var elmnt = evnt.srcElement;
    if (elmnt) {
        while (elmnt.tagName !== "A") 
            elmnt = elmnt.parentNode;
        if (/http/.test(elmnt.protocol)) 
            bUseEventForOutbound ? gaA_pageTracker._trackEvent("outbound", "click", elmnt.hostname + "/" + elmnt.pathname + elmnt.search) : gaA_pageTracker._trackPageview("/outbound/" + elmnt.hostname + "/" + elmnt.pathname + elmnt.search);
        if (elmnt.protocol == "mailto:") 
            bUseEventForOutbound ? gaA_pageTracker._trackEvent("mailto", "click", elmnt.href.replace(/mailto:/, "")) : gaA_pageTracker._trackPageview("/mailto/" + elmnt.href.replace(/mailto:/));
    }
    else {
        if (/http/.test(this.protocol)) 
            bUseEventForOutbound ? gaA_pageTracker._trackEvent("outbound", "click", this.hostname + this.pathname + this.search) : gaA_pageTracker._trackPageview("/outbound/" + this.hostname + this.pathname + this.search);
        if (this.protocol == "mailto:") 
            bUseEventForOutbound ? gaA_pageTracker._trackEvent("mailto", "click", this.href.replace(/mailto:/, "")) : gaA_pageTracker._trackPageview("/mailto/" + this.href.replace(/mailto:/));
    }
}

/// EOF ///