diff --git a/frame.js b/frame.js
index d63a67ab..aeb2795d 100644
--- a/frame.js
+++ b/frame.js
@@ -682,7 +682,7 @@ Volcanos(chat.ONMOTION, {_init: function(can, target) {
 			window._scroll = _window.onmousemove
 		}, _window.onmouseup = function(event) { target = null, begin = {}, delete(window._scroll) }
 		_window.onmousemove = function(event) {
-			if (window._scroll) { can.onkeymap.prevent(event)
+			if (window._scroll && target) { can.onkeymap.prevent(event)
 				switch (action) {
 					case "left":
 						can.page.style(can, target, html.LEFT, can.base.Min(begin.left + event.x - begin.x, 0, window.innerWidth-target.offsetWidth))
diff --git a/proto.js b/proto.js
index 3548f547..c1b6bd1e 100644
--- a/proto.js
+++ b/proto.js
@@ -94,6 +94,8 @@ var web = {CHAT: "chat",
 	CODE_XTERM: "web.code.xterm", CODE_VIMER: "web.code.vimer", CODE_INNER: "web.code.inner",
 	WIKI_WORD: "web.wiki.word", WIKI_DRAW: "web.wiki.draw", WIKI_FEEL: "web.wiki.feel",
 	TEAM_PLAN: "web.team.plan",
+	UPDATE: "update",
+	HIDDEN: "hidden",
 }
 var aaa = {
 	LOGIN: "login", LOGOUT: "logout", INVITE: "invite", TOKEN: "token",