Ajax & onUnload

[bengaltgrs]

I am trying to create a system that keeps track of which members are online and which are not. The issue I am running into is that I need a method to set the member's status to offline when they close the browser window. It will currently set a members status to offline if they go to a different page, but not if they close the window. The current function is set as the onUnload event of the body:

function onUnloadRequest()
{
	xmlhttp = null;

	if(window.XMLHttpRequest)
	{
	  xmlhttp = new XMLHttpRequest();
	}

	else if(window.ActiveXObject)
	{
	  xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
	}
	if(xmlhttp != null)
	{
	  xmlhttp.open("GET", "ajx_change_status.php", true);
	  xmlhttp.send(null);
	  return xmlhttp.responseText;
	}
	else
	{
	  alert("Your browser does not support XMLHTTP.");
	}
}

[shyam]

Originally Posted by bengaltgrs

The issue I am running into is that I need a method to set the member's status to offline when they close the browser window. It will currently set a members status to offline if they go to a different page, but not if they close the window.

if u want to find out if a browser window has been closed...u can't

[A1ien51]

Server really needs to do this with a session timeout unless you are polling the server, you can see when the polling stops.

Eric

[bengaltgrs]

Do you know of any websites tutorials on either of these topics? I've been googling for a while with no real results.