$(document).ready(function() {

var hrefs = document.getElementsByTagName("a");
var link_path = "";
for (var l = 0; l < hrefs.length; l++) {
    try {
        // Add the hostname and link location into variables
        var link_path = hrefs[l].pathname;
        var link_location = String(hrefs[l]);

        // Check if it's a mail link
        if (link_location.match(/^mailto:/i)) {
            addmailtotrackerlistener(hrefs[l]);
        }
        // Check to see if the link is an internal link
        else if (location.host == hrefs[l].hostname) {
            if (link_path.match(/\.(doc|pdf|xls|ppt|zip|txt|vsd|vxd|js|css|rar|exe|wma|mov|avi|wmv|mp3)$/)) {
                addtrackerlistener(hrefs[l]);
            }
        }
        else {
            addtrackerlistener(hrefs[l]);
        }
    }
    catch (err) { }
}


// Add a listener to matching file links
function addtrackerlistener(obj) {
    if (obj.addEventListener) {
        obj.addEventListener('click', trackfiles, true);
    } else if (obj.attachEvent) {
        obj.attachEvent("on" + 'click', trackfiles);
    }
}


// Add a special listener to mailto: links
function addmailtotrackerlistener(obj) {
    if (obj.addEventListener) {
        obj.addEventListener('click', trackmailto, true);
    } else if (obj.attachEvent) {
        obj.attachEvent("on" + 'click', trackmailto);
    }
}


// Track file links
function trackfiles(array_element) {
    var file_path = "";
    // Track an external link
    var destination_host = (array_element.srcElement) ? array_element.srcElement.hostname : this.hostname;
    if (location.host != destination_host) {
        file_path = "/virtual/exlink/" + cleanURL(window.location, true) + '/' + ((array_element.srcElement) ? array_element.srcElement.hostname : this.hostname);
        file_path = file_path + ((array_element.srcElement) ? "/" + cleanURL(array_element.srcElement.pathname, false) : this.pathname);
    }
    // Track an internal link
    else {
        file_path = ((array_element.srcElement) ? "/" + array_element.srcElement.pathname : this.pathname);
        var file_details = file_path.split('/');
        file_path = cleanURL(window.location, true) + '/' + file_details[(file_details.length - 1)];
        file_path = (("/virtual/download/") + file_path);
    }
    _gaq.push(['_trackPageview', file_path])
    //pageTracker._trackPageview(file_path);
}

// Generate page view for a mailto: link
function trackmailto(array_element) {
    var email = ((array_element.srcElement) ? array_element.srcElement.href : this.href).substring(7);
    var url = cleanURL(window.location, true);
    var mail_path = '/virtual/mailto/' + url + '/' + email;
    _gaq.push(['_trackPageview', file_path])
    //pageTracker._trackPageview(mail_path);
}

// Clean leading & trailing slashes
function cleanURL(url, end) {
    var url = url.toString();
    var urlLen = url.length;

    if (end) {
        if (url.charAt((urlLen - 1)) == '/')
            url = url.substring(0, (urlLen - 1));
    }
    else {
        if (url.charAt(0) == '/')
            url = url.substring(1, urlLen);
    }
    return url;
}
});