// // This script was developed by Justin Cutroni // By default, this script will track links to the follwoing file // types: .doc, .xls, .exe, .zip and .pdf // // // This variable controls how outbound links will appear // the GA reports. By default, external links will appear as // '/outbound/' where URL is the URL in the anchor tag. // // Reworked logic, added cross domain linking, updated for ga.js // -JH //var ew = window.open('about:blank','ErrorWindow'); // debug setup //var debug = ""; // debug setup window.onload = listenToClicks; // The domains[] array is the array of all domains that you wish to do cross-domain tracking across , using the pageTracker._link() function from ga.js var extIdentifier = '/outbound/'; var docIdentifier = '/download'; // listenToClicks should be called once after the DOM is loaded, such as with function listenToClicks() { var domains = []; // array of domains to use _link(); on. For www.otherdomain.com you would just use "otherdomain" in the array var fileTypes = [".doc",".xls",".exe",".zip",".pdf"]; // array of file types to track var found = []; // flow control variable used later if (document.getElementsByTagName) { var aTags = document.getElementsByTagName('a'); // get all the tags and put them in hrefs for (var i = 0; i < aTags.length; i++) { //loop through hrefs and decide if we want any event handlers associated with each tag if (aTags[i]==""){continue;} // if the href is empty go to the next iteration of the href loop // if (aTags[i].hostname == location.host) { // if the href in the tag points to the same full domain we're on, we just try to track downloads. use this or the next 2, depending on how you want to treat subdomains h = location.host.split("."); l = h.length - 1; // **TO DO change this to use mydomain.com, mydomain.org instead - use with next line if (aTags[i].hostname.indexOf(h[l]) != -1){// if we want to treat sub-domains as the same domain use this line and previous line instead. //if (aTags[i].hostname.indexOf(location.host) != -1 || location.host.indexOf(aTags[i].hostname) != -1){ var path = aTags[i].pathname; for (j = 0; j < fileTypes.length; j++){ // loop through the array of document types to track, if we find one then an create event handler and stop looking if (path.indexOf(fileTypes[j]) != -1) {startListening(aTags[i],"click",trackDocuments);} // break since we don't need to finish the loop } } else { // if the href in the tag is not for the domain we're currently on, we either want to track it as an exit link, or use _link(); function to pass cookies for (var j = 0; j < domains.length; j++){ // loop through the array of domains, if our href is for one of the domains in our list, we create an event handler to call _link(); if (aTags[i].hostname.indexOf(domains[j]) != -1) {startListening(aTags[i],"click",useLinker); found[i] = 1; break;} } if (found[i] != 1){startListening(aTags[i],"click",trackExternalLinks);} // if our loop through domains turned up nothing, then found[i] will not be = 1 and we'll track it as an exit link } } } } // creates an event handler using browser specific method (addEventListener or AttachEvent) for our 3 functions below. function startListening (obj,evnt,func) { if (obj.addEventListener) { //debug += obj + " " + func + "

"; obj.addEventListener(evnt,func,false); } else if (obj.attachEvent) { obj.attachEvent("on" + evnt,func); } } // useLinker: calls _link(); on the href in the tag in question function useLinker (evnt) { //debug += "inside useLinker

"; var lnk; if (evnt.srcElement) { var elmnt = evnt.srcElement; while (elmnt.tagName != "a") { var newelmnt = elmnt.parentNode; elmnt = newelmnt; } lnk = "http://" + elmnt.hostname + "/" + elmnt.pathname + elmnt.search; } else { lnk = "http://" + this.hostname + this.pathname + this.search; } if (typeof(pageTracker) == "object") { // make sure pageTracker is defined pageTracker._link(lnk); if (evnt.preventDefault) {evnt.preventDefault();}else{evnt.returnValue=false;} //ew.document.write(debug); // prevents the click from causing the default action for tags(following the link) return false; //may not need this } } // trackDocuments: calls _trackPageview before downloading a file function trackDocuments (evnt) { //debug += "inside trackDocuments

"; var url = (evnt.srcElement) ? "/" + evnt.srcElement.pathname : this.pathname; url = docIdentifier + url; if (typeof(pageTracker) == "object") {//debug += "if pageTracker == object

"; pageTracker._trackPageview(url);//ew.document.write(debug); } } // trackExternalLinks: calls _trackPageview before following an external link function trackExternalLinks (evnt) { //debug += "inside trackExternalLinks

"; var lnk; if (evnt.srcElement) { var elmnt = evnt.srcElement; while (elmnt.tagName != "a") { var newelmnt = elmnt.parentNode; elmnt = newelmnt; } lnk = extIdentifier +elmnt.hostname + "/" + elmnt.pathname + elmnt.search; } else { lnk = extIdentifier + this.hostname + this.pathname + this.search; } if (typeof(pageTracker) == "object") {//debug += "if pageTracker == object

"; pageTracker._trackPageview(lnk); //ew.document.write(debug); } }