remove static from reference

js/closeNav.js

@@ -0,0 +1,3 @@
+function closeNav() {
+    document.getElementById("myNav").style.width = "0%";
+}

js/openNav.js

@@ -0,0 +1,3 @@
+function openNav() {
+    document.getElementById("myNav").style.width = "100%";
+}