created and tested server side water control

app/client/tabs.js

@@ -0,0 +1,39 @@
+if (Meteor.isClient) {
+
+  Template.tabs.helpers({
+    class_for: function(tab_name) {
+      var templateName = Session.get('templateName');
+
+      if (templateName === tab_name) {
+        return tab_name + ' active';
+      } else if (templateName === 'display' && tab_name === 'news') {
+        return tab_name + ' active'
+      } else {
+        return tab_name;
+      }
+    },
+
+    selected_controller: function() {
+      return Session.get('controller_id');
+    },
+  });
+
+  Template.tabs.events({
+    'click .start': function() {
+      Session.set('templateName', 'start');
+    },
+    'click .weather': function() {
+      Session.set('templateName', 'weather');
+    },
+    'click .log': function() {
+      Session.set('templateName', 'log');
+    },
+
+    'click #switch': function() {
+      var instance = Template.instance();
+      controller_id = instance.$('#controller').val();
+      Session.setPersistent('controller_id', controller_id);
+    }
+  });
+
+}