LT-67 Implementing reactive type-toggle for server creation form

Packages/lesiontracker/client/components/serverInformationModal/serverInformationModal.js

@@ -1,6 +1,15 @@
 Template.serverInformationModal.onCreated(function() {
     var instance = Template.instance();
     instance.container = {
-        mode: new ReactiveVar("list")
+        mode: new ReactiveVar('list'),
+        serverType: new ReactiveVar(null)
     };
 });
+
+Template.serverInformationModal.events({
+  'click .js-back' (event, instance) {
+    var container = instance.container;
+    container.mode.set('list');
+    container.serverType.set(null);
+  }
+});