support for adding to onion site

ipick.js

+var ipickJsIsIncluded = false;
 (function(document, logo) {
+  // Prevent ipick being loaded twice
+  if (ipickJsIsIncluded)
+    return;
+  ipickJsIsIncluded = true;
+
   var style = `
     #ipick-button {
       position: absolute;
@@ -116,18 +122,40 @@
   // create menu
   var menu = document.createElement("div");
   menu.className = "ipick-menu";
-  menu.innerHTML = `
-<ul>
-  <li><a href="https://webmail.immerda.ch">Mail</a></li>
-  <li><a href="https://wolkig.ch">Cloud</a></li>
-  <li><a href="https://dl.immerda.ch">Fileshare</a></li>
-  <li><a href="https://schichtplan.immerda.ch">Schichtplan</a></li>
-  <li><a href="https://code.immerda.ch">Code</a></li>
-  <li><a href="https://users.immerda.ch">Einstellungen</a></li>
-  <li><a href="https://docs.immerda.ch">Hilfe</a></li>
-  <li><a href="https://www.immerda.ch/contribute/account.html">Spenden</a></li>
-</ul>
-`;
+  var notOnion = location.host.indexOf('ysp4gfuhnmj6b4mb.onion') === -1;
+  var idomain = notOnion ? "immerda.ch" : "ysp4gfuhnmj6b4mb.onion";
+
+  var menuEntries = [
+    ["webmail." + idomain,
+      "Mail"],
+    ["wolkig.ch",
+      "Cloud"],
+    ["dl.immerda.ch",
+      "Fileshare"],
+    ["schichtplan.immerda.ch",
+      "Schichtplan"],
+    ["code.immerda.ch",
+      "Code"],
+    ["users." + idomain,
+      "Einstellungen"],
+    ["docs.immerda.ch",
+      "Hilfe"],
+    ["www." + idomain + "/donate.html",
+      "Spenden"],
+  ];
+
+  var menuList = document.createElement("ul");
+  menuEntries.forEach(function(e) {
+    var li = document.createElement("li");
+    var a = document.createElement("a");
+    a.href = "https://" + e[0];
+    a.innerHTML = e[1];
+    li.appendChild(a);
+    menuList.appendChild(li);
+  });
+  var nav = document.createElement("nav");
+  nav.appendChild(menuList);
+  menu.appendChild(nav);
 
   // create menu toggler
   var image = document.createElement("img");