diff --git a/controllers/prototype/index.js b/controllers/prototype/index.js
index f09e980..70287d4 100644
--- a/controllers/prototype/index.js
+++ b/controllers/prototype/index.js
@@ -26,7 +26,6 @@ module.exports.index = function(req, res) {
 
 module.exports.arrows = function(req, res) {
     createNewId(req, function() {
-
         res.setHeader('Content-Type', 'text/html');
 
         res.locals.cameraStyle = 'arrows';
@@ -34,26 +33,29 @@ module.exports.arrows = function(req, res) {
         res.render('prototype.jade', res.locals, function(err, result) {
             res.send(result);
         });
-
     });
 }
 
 module.exports.viewports = function(req, res) {
-    res.setHeader('Content-Type', 'text/html');
+    createNewId(req, function() {
+        res.setHeader('Content-Type', 'text/html');
 
-    res.locals.cameraStyle = 'viewports';
+        res.locals.cameraStyle = 'viewports';
 
-    res.render('prototype.jade', res.locals, function(err, result) {
-        res.send(result);
+        res.render('prototype.jade', res.locals, function(err, result) {
+            res.send(result);
+        });
     });
 }
 
 module.exports.reverse = function(req, res) {
-    res.setHeader('Content-Type', 'text/html');
+    createNewId(req, function() {
+        res.setHeader('Content-Type', 'text/html');
 
-    res.locals.cameraStyle = 'reverse';
+        res.locals.cameraStyle = 'reverse';
 
-    res.render('prototype.jade', res.locals, function(err, result) {
-        res.send(result);
+        res.render('prototype.jade', res.locals, function(err, result) {
+            res.send(result);
+        });
     });
 }
diff --git a/lib/boot.js b/lib/boot.js
index d9b0642..81c59ff 100644
--- a/lib/boot.js
+++ b/lib/boot.js
@@ -34,4 +34,32 @@ module.exports = function(parent, options){
         // mount the app
         parent.use(app);
     });
+
+    fs.readdirSync(__dirname + '/../posts').forEach(function(name){
+
+        // index.js in controller, with function as pages (views.py for django)
+        var obj = require('./../posts/' + name + '/index');
+
+        // urls.js, just like django urls.py
+        var urls = require('./../posts/' + name + '/urls');
+        var name = obj.name || name;
+        var app = express();
+
+        // allow specifying the view engine
+        if (obj.engine) app.set('view engine', obj.engine);
+        app.set('views', __dirname + '/../posts/' + name + '/views');
+
+        // generate routes based
+        // on the exported methods
+
+        verbose && console.log('\t' + name + ':');
+        for (var key in urls) {
+            app.post(key, obj[urls[key]]);
+            console.log('\t\t' + key + ' -> ' + name + '.' + urls[key]);
+        }
+        console.log();
+
+        // mount the app
+        parent.use(app);
+    });
 };
diff --git a/posts/arrow-clicked/index.js b/posts/arrow-clicked/index.js
new file mode 100644
index 0000000..279c7e6
--- /dev/null
+++ b/posts/arrow-clicked/index.js
@@ -0,0 +1,22 @@
+var pg = require('pg');
+var secret = require('../../private');
+
+module.exports.index = function(req, res) {
+
+    var user_id = req.session.user_id;
+    var arrow_id = req.body.arrow_id;
+
+    pg.connect(secret.url, function(err, client, release) {
+        client.query(
+            "INSERT INTO arrowclicked(user_id, arrow_id) VALUES($1,$2);",
+            [user_id, arrow_id],
+            function(err, result) {
+                release();
+            }
+        );
+    });
+
+    res.setHeader('Content-Type', 'text/html');
+    res.send("user_id = " + user_id);
+
+}
diff --git a/posts/arrow-clicked/urls.js b/posts/arrow-clicked/urls.js
new file mode 100644
index 0000000..9e26ab8
--- /dev/null
+++ b/posts/arrow-clicked/urls.js
@@ -0,0 +1,3 @@
+module.exports = {
+    '/arrow-clicked': 'index'
+}
diff --git a/posts/coin-clicked/index.js b/posts/coin-clicked/index.js
new file mode 100644
index 0000000..a6f9545
--- /dev/null
+++ b/posts/coin-clicked/index.js
@@ -0,0 +1,22 @@
+var pg = require('pg');
+var secret = require('../../private');
+
+module.exports.index = function(req, res) {
+
+    var user_id = req.session.user_id;
+    var coin_id = req.body.coin_id;
+
+    pg.connect(secret.url, function(err, client, release) {
+        client.query(
+            "INSERT INTO coinclicked(user_id, coin_id) VALUES($1,$2);",
+            [user_id, coin_id],
+            function(err, result) {
+                release();
+            }
+        );
+    });
+
+    res.setHeader('Content-Type', 'text/html');
+    res.send("user_id = " + user_id);
+
+}
diff --git a/posts/coin-clicked/urls.js b/posts/coin-clicked/urls.js
new file mode 100644
index 0000000..2b46584
--- /dev/null
+++ b/posts/coin-clicked/urls.js
@@ -0,0 +1,3 @@
+module.exports = {
+    '/coin-clicked': 'index'
+}
diff --git a/server.js b/server.js
index 6d80a7f..12d5c9e 100644
--- a/server.js
+++ b/server.js
@@ -17,19 +17,12 @@ app.set('trust proxy', 1);
 
 app.use(cookieParser(secret.secret));
 app.use(session({
-    // express-session
-    // saveUninitialized: true,
-    // resave: true,
-    // secret: secret.secret
-
-    // cookie-session
     keys: ['key1', 'key2']
 }));
 
 app.use(bodyParser.text());
 app.use(bodyParser.urlencoded({ extended: false }));
 app.use(bodyParser.json());
-// app.use(bodyParser.text({ type: 'text/html' }))
 
 app.use(function(req, res, next) {
     res.locals.title = "3DUI";
@@ -52,24 +45,6 @@ require('./lib/boot')(app, { verbose: !module.parent });
 
 app.use('/static', express.static('static'));
 
-app.post('/post', function(req, res) {
-    var user_id = req.session.user_id;
-    var arrow_id = req.body.arrow_id;
-
-    pg.connect(secret.url, function(err, client, release) {
-        client.query(
-            "INSERT INTO arrowclicked(user_id, arrow_id) VALUES($1,$2);",
-            [user_id, arrow_id],
-            function(err, result) {
-                release();
-            }
-        );
-    });
-
-    res.setHeader('Content-Type', 'text/html');
-    res.send("user_id = " + user_id);
-});
-
 // When error raised
 app.use(function(err, req, res, next) {
     if (err.status === 404) {
diff --git a/sql/all_elements.pgsql b/sql/all_elements.pgsql
new file mode 100644
index 0000000..304dd61
--- /dev/null
+++ b/sql/all_elements.pgsql
@@ -0,0 +1,4 @@
+SELECT user_id, arrow_id as elt_id, time, 'arrow' as elt FROM arrowclicked
+UNION
+SELECT user_id, coin_id, time, 'coin' FROM coinclicked
+ORDER BY time;
diff --git a/sql/backup.pgsql b/sql/backup.pgsql
index 354c123..9543059 100644
--- a/sql/backup.pgsql
+++ b/sql/backup.pgsql
@@ -1,5 +1,6 @@
 DROP TABLE IF EXISTS users CASCADE;
 DROP TABLE IF EXISTS arrowclicked CASCADE;
+DROP TABLE IF EXISTS coinclicked CASCADE;
 
 CREATE TABLE users (
     id SERIAL PRIMARY KEY,
@@ -13,3 +14,9 @@ CREATE TABLE arrowclicked(
     arrow_id INTEGER
 );
 
+CREATE TABLE coinclicked(
+    id SERIAL PRIMARY KEY,
+    user_id SERIAL REFERENCES users (id),
+    time TIMESTAMP DEFAULT NOW(),
+    coin_id INTEGER
+);
diff --git a/static/js/Logger.js b/static/js/Logger.js
index 3c3d186..7d93d20 100644
--- a/static/js/Logger.js
+++ b/static/js/Logger.js
@@ -1,19 +1,26 @@
 var BD = {};
 
+BD.Private = {};
+BD.Private.sendData = function(url, data) {
+    var xhr = new XMLHttpRequest();
+    xhr.open("POST", url, true);
+    xhr.setRequestHeader("Content-type", "application/json;charset=UTF-8");
+    xhr.send(JSON.stringify(data));
+}
+
 BD.Event = {};
 
 BD.Event.ArrowClicked = function() {};
 BD.Event.ArrowClicked.prototype.send = function() {
-    var url = "/post";
+    var url = "/arrow-clicked";
+    var data = {arrow_id: this.arrow_id};
+    BD.Private.sendData(url, data);
+}
 
-    var data = {};
-
-    data.arrow_id = this.arrow_id;
-
-    var xhr = new XMLHttpRequest();
-    xhr.open("POST", url, true);
-    xhr.setRequestHeader("Content-type", "application/json;charset=UTF-8");
-    xhr.send(JSON.stringify(data));
-
-};
+BD.Event.CoinClicked = function() {};
+BD.Event.CoinClicked.prototype.send = function() {
+    var url = "/coin-clicked";
+    var data = {coin_id: this.coin_id};
+    BD.Private.sendData(url, data);
+}
 
diff --git a/static/js/prototype/raycasterTools.js b/static/js/prototype/raycasterTools.js
index dbff63a..6c40f11 100644
--- a/static/js/prototype/raycasterTools.js
+++ b/static/js/prototype/raycasterTools.js
@@ -77,12 +77,15 @@ CameraSelecter.prototype.click = function(event) {
     if (newCamera !== undefined && !(newCamera instanceof Coin)) {
         var event = new BD.Event.ArrowClicked();
         event.arrow_id = cameras.cameras.indexOf(newCamera);
-        event.user_id = 1;
         event.send();
 
         this.cameras.mainCamera().moveHermite(newCamera);
         buttonManager.updateElements();
     } else if (newCamera instanceof Coin) {
+        // Coin found, notify server
+        var event = new BD.Event.CoinClicked();
+        event.coin_id = coins.indexOf(newCamera);
+        event.send();
         newCamera.get();
     }
 }
diff --git a/views/main.jade b/views/main.jade
index 6008cf1..5bf38ee 100644
--- a/views/main.jade
+++ b/views/main.jade
@@ -59,8 +59,7 @@ html(lang='fr')
             if alertCookie
                 .alert.alert-warning.alert-dismissible(role="alert", style={'margin-top':'20px'})
                     button.close(type="button", data-dismiss="alert", aria-label="Close")
-                        span(aria-hidden="true")
-                            ×
+                        span(aria-hidden="true") ×
                     <strong>Warning</strong> : this website use cookies !
 
             block content