new file mode 100644
--- /dev/null
+++ b/plugins/presence.js
@@ -0,0 +1,30 @@
+'use strict';
+
+/**
+  Copyright (c) 2011, Sonny Piers <sonny at fastmail dot net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+////////////
+//Presence// http://xmpp.org/rfcs/rfc6121.html#presence
+////////////
+Lightstring.stanza.presence = function(aPriority) {
+  if(aPriority)
+    return "<presence><priority>"+aPriority+"</priority></presence>";
+  else
+    return "<presence/>";
+};
+Lightstring.presence = function(aConnection, aPriority) {
+  aConnection.send(Lightstring.stanza.presence(aPriority));
+};