if (document.images) var refInterval = 0;
else var refInterval = 5;
function startCounter()
{
refInterval = refInterval - 1;
var now = new Date();
var dummystring = parseInt(now.getTime() / 1000);
if (refInterval < 1)
{
if (document.images) document.refImage.src = "http://www.hbnweb.de/FTUP0.jpg" + "?" + dummystring;
else window.location.reload();
refInterval = 5;
}

timerID = setTimeout("startCounter()", 1000);

document.counter.counter.value=refInterval ;
}