2 files changed, 18 insertions, 17 deletions
diff --git a/src/js/chair.js b/src/js/chair.js
index ceed88c..b1a3dbb 100644
--- a/src/js/chair.js
+++ b/src/js/chair.js
@@ -1,19 +1,17 @@
 var left = 0;
 var right = 0;
 
+function update(node, value){
+    node.setAttribute('value', value);
+}
+
 module.exports = {
-    update_left: function() {
-        document.getElementById('LeftChair').setAttribute('value', left);
-    },
-    left: function() {
+    left: function(node) {
         left = (left + 1) % 3;
-        this.update_left();
-    },
-    update_right: function() {
-        document.getElementById('RightChair').setAttribute('value', right);
+        update(node, left);
     },
-    right: function() {
+    right: function(node) {
         right = (right + 1) % 3;
-        this.update_right();
+        update(node, right);
     },
 }
 \ No newline at end of file
diff --git a/src/js/fan_speed.js b/src/js/fan_speed.js
index cc81fe0..4c8349e 100644
--- a/src/js/fan_speed.js
+++ b/src/js/fan_speed.js
@@ -1,10 +1,13 @@
-module.exports = {
-    set: function(value) {
-        document.getElementById('FanSpeedProgress').value = value;
-        document.getElementById('FanSpeedInput').value = value;
-    },
-    update: function( value ) {
-        this.set(value);
+var value = 0;
+
+function update(node, value) {
+    node.value = value;
+    node.parentNode.getElementsByTagName('progress')[0].value = value;
+}
 
+module.exports = {
+    set: function(node) {
+        value = node.value;
+        update(node, value);
     }
 }
 \ No newline at end of file