//	Javascript to tag file downloads and external links in Google Analytics
//	To use, place reference to this file should be placed at the bottom of all pages, 
//	just above the Google Analytics tracking code.
//	All outbound links and links to non-html files should now be automatically tracked.
if (document.getElementsByTagName) {
        // Initialize external link handlers
	var hrefs = document.getElementsByTagName("a");
	for (var l = 0; l < hrefs.length; l++) {
		//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;
				var isDoc = path.match(/(?:doc|eps|exe|jpg|pdf|png|ppt|svg|vsd|xls|zip)($|\&)/);
				if (isDoc) {
						startListening(hrefs[l],"click",trackExternalLinks);
				}
		} else {
				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 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); 
}