//	Original script 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++) {
		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;
				var isDoc = path.match(/\.(?:doc|jpg|png|pdf|zip|js|css|rar|exe|mov|wav|aac|avi|mp3)($|\&|\?)/);
	                        if (isDoc) {
	                                startListening(hrefs[l],"click",trackExternalLinks);
	                        }
	                } else if (hrefs[l].protocol != "https:") {
	                        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(urchinTracker) == "function") 
        	try { 
        		urchinTracker(mailto); 
        	} 
        	catch(err) { 
        	}
}

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 (e.hostname == location.host) lnk = "/internal" + lnk;
        if (typeof(urchinTracker) == "function")
        	try { 
        		urchinTracker(lnk); 
        	} 
        	catch(err) { 
        	}
}