Hi,
Can anyone find why this setTimeout() loop isn't working - I'm getting:
'data_to_send' is undefined
Any help much appreciated, thanks.
BTW, ajax.js contains my handling for creating the XMLHttpRequest, called createRequest(). -
<html>
-
<head>
-
-
<script src="ajax.js" type="text/javascript"></script>
-
-
<script language="JavaScript">
-
-
function getData(data_to_send,zone_id)
-
{
-
var url = "realtime_read_values.php";
-
var req = create_request();
-
req.open("POST", url, true);
-
req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
-
req.send(data_to_send);
-
req.onreadystatechange = function()
-
{
-
if(req.readyState == 4 && req.status == 200)
-
{
-
document.getElementById(zone_id).innerHTML = req.responseText;
-
//setTimeout("getData(window.data_to_send)", 3000); // this doesn't work
-
}
-
}
-
setTimeout("getData(data_to_send,zone_id)", 5000);
-
}
-
-
</script>
-
-
<body onload="getData('graph_request=graph_counter1','zone1'); getData('graph_request=graph_counter2','zone2'); getData('graph_request=graph_counter3','zone3');">
-
-
<div id="zone1">
-
waiting for data..
-
</div>
-
-
<div id="zone2">
-
waiting for data..
-
</div>
-
-
<div id="zone3">
-
waiting for data..
-
</div>
-
-
</body>
-
</html>
-
1  1192 
Hi
I think , as a string type of setTimeout's 1st parameter, your parameters (data_to_send,zone_id) will not pass to the function getData. - setTimeout("getData(data_to_send,zone_id)", 5000);
you can use anonymous function to do it.
try this: - setTimeout(function(){ getData(data_to_send,zone_id); }, 5000);
Regards.
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