diff --git a/app/app.py b/app/app.py
index 7fcceb0..0ce9441 100644
--- a/app/app.py
+++ b/app/app.py
@@ -3,8 +3,8 @@ import os
 
 from flask import Flask
 from flask import render_template
-#import werkzeug
 
+from .config import secret_key, wtf_csrf_secret_key
 from .routes import main
 
 APPPATH = os.path.dirname(os.path.abspath(__file__))
@@ -21,6 +21,11 @@ app = Flask(
 "in case we put a trailing slash at the end of the route's uri"
 app.url_map.strict_slashes = False
 
+app.config.update(dict(
+    SECRET_KEY= secret_key,
+    WTF_CSRF_SECRET_KEY= wtf_csrf_secret_key
+))
+
 @app.before_request
 def clear_trailing():
     from flask import redirect, request
diff --git a/app/config.py b/app/config.py
index 9ca0549..3579bcc 100644
--- a/app/config.py
+++ b/app/config.py
@@ -19,4 +19,5 @@ with open(local_params_file, 'r') as file_handle:
 #    dbadmin = params_content['dbadmin']
 #    dbpassword = params_content['dbpassword']
 #    server_ip = params_content['server_ip']
+# secret_key, wtf_csrf_secret_key
 """
diff --git a/app/routes.py b/app/routes.py
index 10e9afb..8ffc9be 100644
--- a/app/routes.py
+++ b/app/routes.py
@@ -21,28 +21,44 @@ Then the 'dynamic' (calculated) routes :
 import typing as t
 
 
-from flask import Blueprint, abort, render_template, request, send_from_directory
+from flask import Blueprint, render_template, request, redirect
 import folium
 from pymongo import ASCENDING
 
+
 from .dbinit import *
 from .helper import make_timeitem_from_filename
 
 main = Blueprint("main", __name__, url_prefix="/")
 
+# flask wtforms
+from flask_wtf import FlaskForm
+from wtforms import StringField, SubmitField
+from wtforms.validators import DataRequired
+
+class SearchForm(FlaskForm):
+    search = StringField('Recherche', validators=[DataRequired()])
+    submit = SubmitField(label=('Rechercher'))
+
 # ______________________________________________________________________________
 # routes
 
-@main.route("/")
+@main.route("/", methods=('GET', 'POST'))
 def home():
     """home route"""
-    return render_template("home.html")
+    form = SearchForm()
+    if form.validate_on_submit():
+        return f'''<h1> Welcome {form.search.data} </h1>'''
+    return render_template("home.html", form=form)
 
 
-@main.route("/about/")
+@main.route("/about/", methods=('GET', 'POST'))
 def about():
     """about route"""
-    return render_template("about.html")
+    form = SearchForm()
+    if form.validate_on_submit():
+        return f'''<h1> Welcome {form.search.data} </h1>'''
+    return render_template("about.html", form=form)
 
 
 @main.route("/actes/")
@@ -145,8 +161,8 @@ def acte(house=None, prince=None, dateitem=None):
         folium=result.get("folium"),
         transcribers=result.get('transcribers'))
 
-@main.route("/geoloc")
-def geoloc():
+@main.route("/geolocalisation")
+def geolocalisation():
     "global folium/leaflet map"
     m = folium.Map(location=[46.603354, 1.888334], zoom_start=6)
     for result in actecol.find():
diff --git a/app/templates/container.html b/app/templates/container.html
index 1219cb8..27aebf4 100644
--- a/app/templates/container.html
+++ b/app/templates/container.html
@@ -27,13 +27,17 @@
             <li class="nav-item">
               <a class="nav-link" href="{{url_for('main.corpora_all')}}">Corpus</a>
             </li>
+            <li class="nav-item">
+              <a class="nav-link" href="{{url_for('main.geolocalisation')}}">Géolocalisation</a>
+            </li>
             <li class="nav-item">
               <a class="nav-link" href="{{url_for('main.contact')}}">Contact</a>
             </li>
           </ul>
-          <form class="form-inline mt-2 mt-md-0">
-            <input class="form-control mr-sm-2" type="text" placeholder="Recherche" aria-label="Search">
-            <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Rechercher</button>
+          <form method="POST" action="" class="form-inline mt-2 mt-md-0">
+            {{ form.csrf_token }}
+            <input name="search" class="form-control mr-sm-2" type="text" placeholder="Recherche" aria-label="Search">
+            <button name="submit" class="btn btn-outline-success my-2 my-sm-0" type="submit">Rechercher</button>
           </form>
         </div>
       </nav>
@@ -138,4 +142,4 @@
     );
 </script>
   </body>
-</html>
\ No newline at end of file
+</html>