diff --git a/app/www/static/js/intval.core.js b/app/www/static/js/intval.core.js
index 7c1b561..6c77e3e 100644
--- a/app/www/static/js/intval.core.js
+++ b/app/www/static/js/intval.core.js
@@ -11,14 +11,15 @@ const STATE = {
 	scale : 'ms',
 	delayScale : 'ms',
 	counter : 0
-}
+};
 //functions
-let frame;
-let getState;
-let setDir;
-let setExposure;
-let setDelay;
-let setCounter;
+window.frame = null;
+window.getState = null;
+window.setDir = null;
+window.setExposure = null;
+window.setDelay = null;
+window.setCounter = null;
+
 //ms
 var shutter = function (exposure) {
 	let fraction = BOLEX.expected / 1000;
diff --git a/app/www/static/js/intval.web.js b/app/www/static/js/intval.web.js
index 4cbd754..86e495b 100644
--- a/app/www/static/js/intval.web.js
+++ b/app/www/static/js/intval.web.js
@@ -162,11 +162,11 @@ web.useJson = function (res) {
 	return res.json();
 }
 web.init = function () {
-	frame = web.frame;
-	getState = web.getState;
-	setDir = web.setDir;
-	setExposure = web.setExposure;
-	setCounter = web.setCounter;
+	window.frame = web.frame;
+	window.getState = web.getState;
+	window.setDir = web.setDir;
+	window.setExposure = web.setExposure;
+	window.setCounter = web.setCounter;
 
-	web.getState();
+	getState();
 };
\ No newline at end of file