// @author Roxy Noordeen
// Tracks specified field, in specified cookie. Calls tracking url with required params
function callPixelTracker(trackerUrl, cookieName, fieldToTrack) {
     var theCookie = "" + document.cookie;
     var visitorIndex = theCookie.indexOf(cookieName);
     if (visitorIndex != -1) { 
        var suidIndex = theCookie.indexOf(fieldToTrack);
        if (suidIndex != - 1) {
             document.write("<img src="+trackerUrl+ " height='0' width='0' />");
        }
     }  
}