//	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.								

if (document.getElementsByTagName)
{
	// 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{
			//protocol, host, hostname, port, pathname, search, hash
			if (hrefs[l].protocol == "mailto:")
			{ startListening(hrefs[l],"click",trackMailto); }
			else if (hrefs[l].hostname == location.host)
			{
				var path = hrefs[l].pathname + hrefs[l].search;
				if (path.match(/\.(?:doc|eps|jpg|png|svg|xls|ppt|pdf|xls|zip|txt|vsd|vxd|js|css|rar|exe|wma|mov|avi|wmv|mp3)($|\&|\?)/))
				{ startListening(hrefs[l],"click",trackExternalLinks); }
			} else {
				startListening(hrefs[l],"click",trackExternalLinks);
			}
		} catch(e) { continue; }
	}
}

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 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); 
}