--- a/rlgwebd.js	Wed Jun 20 09:12:26 2012 -0700
+++ b/rlgwebd.js	Wed Jun 20 11:37:05 2012 -0700
@@ -801,7 +801,24 @@
 }
 
 function statusmsg(req, res) {
+  var now = new Date();
   var reply = {"s": allowlogin, "g": []};
+  function respond() {
+    res.writeHead(200, { "Content-Type": "application/json" });
+    if (req.method != 'HEAD')
+      res.write(JSON.stringify(reply));
+    res.end();
+  }
+  function idleset(i, idletime) {
+    if (i >= 0 && i < reply.g.length) {
+      reply.g[i].i = idletime;
+    }
+    for (var j = 0; j < reply.g.length; j++) {
+      if (!("i" in reply.g[j]))
+        return;
+    }
+    respond();
+  }
   for (var sessid in sessions) {
     var gamedesc = {};
     gamedesc["n"] = sessid;
@@ -809,10 +826,26 @@
     gamedesc["g"] = sessions[sessid].game.uname;
     reply["g"].push(gamedesc);
   }
-  res.writeHead(200, { "Content-Type": "application/json" });
-  if (req.method != 'HEAD')
-    res.write(JSON.stringify(reply));
-  res.end();
+  if (reply.g.length == 0) {
+    respond();
+    return;
+  }
+  function makecallback(i) {
+    return function (err, stats) {
+      if (err)
+        idleset(i, null);
+      else
+        idleset(i, now - stats.mtime);
+    }
+  }
+  for (var i = 0; i < reply.g.length; i++) {
+    if (reply.g[i].n in sessions) {
+      fs.fstat(sessions[reply.g[i].n].record.fd, makecallback(i));
+    }
+    else {
+      idleset(i, null);
+    }
+  }
 }
 
 function pstatusmsg(req, res) {