// from: http: //www.quirksmode.org/js/cookies.html

function createCookie(name, value, days) {
    if (days) {
        var date = new Date();
        date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
        var expires = "; expires=" + date.toGMTString();
    }
    else var expires = "";
    document.cookie = name + "=" + value + expires + "; path=/";
}

function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for (var i = 0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) == ' ') c = c.substring(1, c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
    }
    return null;
}

function eraseCookie(name) {
    createCookie(name, "", -1);
}


function setTrackingCookieValues() {
    var utmz = readCookie('__utmz'); //using a cookie reading function
    var vals = (function () {
        var pairs = utmz.split('.').slice(4).join('.').split('|');
        var ga = {};
        for (var i = 0; i < pairs.length; i++) {
            var temp = pairs[i].split('=');
            ga[temp[0]] = temp[1];
        }
        return ga;
    })();

    $('#CampaignSource').val(vals.utmcsr);
    $('#CampaignMedium').val(vals.utmcmd);
    $('#CampaignTerm').val(vals.utmctr);
    $('#CampaignContent').val(vals.utmcct);
    $('#CampaignName').val(vals.utmccn);
}

function getTrackingQueryString() {
    var utmz = readCookie('__utmz'); //using a cookie reading function
    var vals = (function () {
        var pairs = utmz.split('.').slice(4).join('.').split('|');
        var ga = {};
        for (var i = 0; i < pairs.length; i++) {
            var temp = pairs[i].split('=');
            ga[temp[0]] = temp[1];
        }
        return ga;
    })();

    return "?campaignSource=" + vals.utmcsr + "&campaignMedium=" + vals.utmcmd + "&campaignTerm=" + vals.utmctr + "&campaignContent=" + vals.utmcct + "&campaignName=" + vals.utmccn;
}