//	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
//

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].getAttribute('href')) {
					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|jpg|png|svg|xls|ppt|pdf|xls|zip|txt|vsd|vxd|js|css|rar|exe|wma|mov|avi|wmv|mp3)($|\&)/);
							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); 

}