imagepath = "http://www.iact.co.jp/trace/trace.php";
var i,d,dd;
i = new Image(1,1);
i.src = imagepath + "?referrer=" + Base64.encodeURI(document.referrer)
                  + "&title=" + Base64.encodeURI(document.title)
                  + "&url=" + Base64.encodeURI(document.location.href)