AJAX refresh

[blufish]

Okay, so I made/got/edited this code, it should refresh the content within a div every 5 seconds, all it does is load it the first time.  Any ideas on how to fix this? thanks.

 

<script type="text/javascript">
window.onload="loadurl(dest)";
{
// http://aleembawany.com/2005/09/01/ajax-instant-tutorial/
function loadurl(dest) {
var dummy = "yay!";
try {
    xmlhttp = window.XMLHttpRequest?new XMLHttpRequest(): new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {
}
xmlhttp.onreadystatechange = triggered;
xmlhttp.open("GET", dest);
xmlhttp.send(null);
}

function triggered() {
if ((xmlhttp.readyState == 4) && (xmlhttp.status == 200)) {
    document.getElementById("output").innerHTML = xmlhttp.responseText;
}
setTimeout ( "loadurl('reader.php')" , 5000);
}
}
</script>

[blufish]

Nobody knows why this isn't working?

[haku]

You have to set 'dest' before you call it in the window.onload function. Right now it is passing an empty variable, which means that it doesn't know the URL to access.