//	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.
//
//  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//	Created by: 	Colm McBarron, colm.mcbarron@iqcontent.com
//	Last updated: 	12-Feb-2006
//	+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//

var hrefs = document.getElementsByTagName("a");
var link_path = "";
for (var l = 0; l < hrefs.length; l++) {
    try {
        var link_path = hrefs[l].pathname;

        if (location.host == hrefs[l].hostname) {
            if (link_path.match(/\.(doc|docx|pdf|xls|xlsx|ppt|pptx|swf|flv|wma|mov|avi|wmv|mp3)$/)) {
                addtrackerlistener(hrefs[l]);
            }
        } else {
          addtrackerlistener(hrefs[l]);
        }
   }
   catch(err) { }
}


function addtrackerlistener(obj) {
    if (obj.addEventListener) {
        obj.addEventListener('click', trackfiles, true);
    } else if (obj.attachEvent) {
        obj.attachEvent("on" + 'click', trackfiles);
    }
}

function trackfiles(array_element) {
    file_path = "";
    if (location.host != this.hostname) {
        file_path = "/exlinks/" + ((array_element.srcElement) ? "/" + array_element.srcElement.hostname : this.hostname);
    }
    file_path = file_path + ((array_element.srcElement) ? "/" + array_element.srcElement.pathname : this.pathname);
    urchinTracker(file_path);
}