//	This javascript tags file downloads and external links in Google Analytics.
//	You need to be using the Google Analytics New Tracking Code (ga.js)
//	for this script to work.
//	To use, place this file on all pages just above the Google Analytics tracking code.
//	All outbound links and links to non-html files should now be automatically tracked.
//
//	This script has been provided by Goodwebpractices.com
//	Thanks to ShoreTel, MerryMan and Colm McBarron
//
//	www.goodwebpractices.com
//	VKI has made changes as indicated below.

function init_gaTag()
{
if (document.getElementsByTagName) {
        var links;
        // Initialize external link handlers
        var hrefs = document.getElementsByTagName("a");
        for (var l = 0; l < hrefs.length; l++) {
				// try {} catch{} block added by erikvold VKI
			try{
                    //links += "[" + hrefs[l].hostname + ", " + hrefs[l].pathname + "]   ";
	                if (hrefs[l].hostname == location.host) {
	                    var path = "/" + hrefs[l].pathname + hrefs[l].search;
	                    path = path.replace("//","/");
					    var isUpdate = path.match(/^\/updates\//i);
                        if (isUpdate) {
                            links += "[Link: H:" + hrefs[l].hostname + "P:" + hrefs[l].pathname + "S: " + hrefs[l].search +"]    ";
                            startListening(hrefs[l],"click",trackUpdate);
                        }

					    var isDoc = path.match(/^\/docs\//i);
                        if (isDoc) {
                            links += "[Link: H:" + hrefs[l].hostname + "P:" + hrefs[l].pathname + "S: " + hrefs[l].search +"]    ";
                            startListening(hrefs[l],"click",trackDOC);
                        }
                        
                        var isMp3 = path.match(/^\/mp3\//i);
                        if (isMp3) {
                            links += "[Link: H:" + hrefs[l].hostname + "P:" + hrefs[l].pathname + "S: " + hrefs[l].search +"]    ";
                            startListening(hrefs[l],"click",trackMP3);
                        }

					    var isCrc = path.match(/^\/crc\//i);
                        if (isCrc) {
                            links += "[Link: H:" + hrefs[l].hostname + "P:" + hrefs[l].pathname + "S: " + hrefs[l].search +"]    ";
                            startListening(hrefs[l],"click",trackCRC);
                        }
	                } 
			}
			catch(e){
					continue;
			}
        }
        //alert(links);
}
}

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

function trackMailto (evnt) {
        var href = (evnt.srcElement) ? evnt.srcElement.href : this.href;
        var mailto = "/mailto/" + href.substring(7);
        if (typeof(pageTracker) == "object") pageTracker._trackPageview(mailto);
}

function trackUpdate (evnt) {
        var e = (evnt.srcElement) ? evnt.srcElement : this;
        while (e.tagName != "A") {
                e = e.parentNode;
        }
        var lnk = (e.pathname.charAt(0) == "/") ? e.pathname : "/" + e.pathname;
        if (e.search && e.pathname.indexOf(e.search) == -1) lnk += e.search;
        if (e.hostname != location.host) lnk = "/external/" + e.hostname + lnk;
        if (typeof(pageTracker) == "object") pageTracker._trackEvent('Update', 'Download', lnk);
}

function trackDOC (evnt) {
        var e = (evnt.srcElement) ? evnt.srcElement : this;
        while (e.tagName != "A") {
                e = e.parentNode;
        }
        var lnk = (e.pathname.charAt(0) == "/") ? e.pathname : "/" + e.pathname;
        if (e.search && e.pathname.indexOf(e.search) == -1) lnk += e.search;
        if (e.hostname != location.host) lnk = "/external/" + e.hostname + lnk;
        if (typeof(pageTracker) == "object") pageTracker._trackEvent('Document', 'Download', lnk);
}

function trackMP3 (evnt) {
        var e = (evnt.srcElement) ? evnt.srcElement : this;
        while (e.tagName != "A") {
                e = e.parentNode;
        }
        var lnk = (e.pathname.charAt(0) == "/") ? e.pathname : "/" + e.pathname;
        if (e.search && e.pathname.indexOf(e.search) == -1) lnk += e.search;
        if (e.hostname != location.host) lnk = "/external/" + e.hostname + lnk;
        if (typeof(pageTracker) == "object") pageTracker._trackEvent('MP3', 'Download', lnk);
}

function trackCRC (evnt) {
        var e = (evnt.srcElement) ? evnt.srcElement : this;
        while (e.tagName != "A") {
                e = e.parentNode;
        }
        var lnk = (e.pathname.charAt(0) == "/") ? e.pathname : "/" + e.pathname;
        if (e.search && e.pathname.indexOf(e.search) == -1) lnk += e.search;
        if (e.hostname != location.host) lnk = "/external/" + e.hostname + lnk;
        if (typeof(pageTracker) == "object") pageTracker._trackEvent('Client Reporting Centre', 'Download', lnk);
}



function trackExternalLinks (evnt) {
        var e = (evnt.srcElement) ? evnt.srcElement : this;
        while (e.tagName != "A") {
                e = e.parentNode;
        }
        var lnk = (e.pathname.charAt(0) == "/") ? e.pathname : "/" + e.pathname;
        if (e.search && e.pathname.indexOf(e.search) == -1) lnk += e.search;
        if (e.hostname != location.host) lnk = "/external/" + e.hostname + lnk;
        if (typeof(pageTracker) == "object") pageTracker._trackPageview(lnk);
}

$(document).ready(function() {
    init_gaTag();
});