Index: lams_learning/web/includes/javascript/presence.js
===================================================================
diff -u -r9c603f82a3332d5e2e5b290bcc550f263c09a8f8 -r0ddeb3a1dcf29cbbba6ed0fccbd139f9c31c347f
--- lams_learning/web/includes/javascript/presence.js	(.../presence.js)	(revision 9c603f82a3332d5e2e5b290bcc550f263c09a8f8)
+++ lams_learning/web/includes/javascript/presence.js	(.../presence.js)	(revision 0ddeb3a1dcf29cbbba6ed0fccbd139f9c31c347f)
@@ -1,6 +1,9 @@
 $(document).ready(function (){
 	presenceChat = $("#presenceChat");
 	rosterDiv = $("#presenceUserListings");
+	$( window ).resize(function() {
+		resizeChat();
+	});
 
 	// if presence IM is enabled
 	if (presenceEnabled) {
@@ -174,21 +177,24 @@
 }
 
 function resizeChat() {
+	
 	// refresh the window height
 	windowHeight = $(window).height() - 30;
 
 	// if presence is shown
 	if (presenceShown) {
 		// set presence chat to maximized height
 		presenceChat.css({
-			'top' : windowHeight - 270 + "px"
+			'top' : windowHeight - 300 + "px",
+			'position' : 'absolute'
 		});
 	}
 	// otherwise
 	else {
 		// set presence chat to minimized height
 		presenceChat.css({
-			'top' : windowHeight + "px"
+			'top' : windowHeight + "px",
+			'position' : 'fixed'
 		});
 	}
 }	
@@ -266,7 +272,6 @@
 	messageInput.val('');
 	messageInput.focus();
 	
-	
 	var data = {
 		 'type'     : 'message',
 		 'lessonID' : lessonId,
@@ -293,7 +298,7 @@
 		presenceShown = false;
 	} else {
 		presenceChat.animate({
-			top : windowHeight - 270 + "px"
+			top : windowHeight - 300 + "px"
 		}, 1000);
 		presenceShown = true;
 	}