Oh, I hadn't committed this

homepage/main.js

@@ -0,0 +1,30 @@
+/*
+        these code snippets stolen from
+        https://www.w3schools.com/js/js_cookies.asp
+*/
+function setCookie(cname, cvalue, exdays) {
+        var d = new Date();
+        d.setTime(d.getTime() + (exdays*24*60*60*1000));
+        var expires = "expires="+ d.toUTCString();
+        document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/";
+}
+
+function getCookie(cname) {
+        var name = cname + "=";
+        var decodedCookie = decodeURIComponent(document.cookie);
+        var ca = decodedCookie.split(';');
+        for(var i = 0; i <ca.length; i++) {
+                var c = ca[i];
+                while(c.charAt(0) == ' ') c = c.substring(1);
+                if(c.indexOf(name) == 0)
+                        return c.substring(name.length, c.length);
+        }
+        return "";
+}
+/* end stolen code; */
+
+function setStyling(sheet, pathToRoot) {
+        document.getElementById('styling')
+                .setAttribute('href', pathToRoot + sheet + ".css");
+        return sheet;
+}