diff --git a/django/didgeridoo/currencies/forms.py b/django/didgeridoo/currencies/forms.py
new file mode 100644
index 0000000..23723cd
--- /dev/null
+++ b/django/didgeridoo/currencies/forms.py
@@ -0,0 +1,8 @@
+from django import forms
+from currencies.models import ExchangeRate_name
+
+
+class CurrenciesForm(forms.Form):
+    currencies = forms.ModelChoiceField(
+        queryset=ExchangeRate_name.objects.all(),
+                required=False)
diff --git a/django/didgeridoo/currencies/models.py b/django/didgeridoo/currencies/models.py
index a5014f3..e2335f9 100644
--- a/django/didgeridoo/currencies/models.py
+++ b/django/didgeridoo/currencies/models.py
@@ -23,5 +23,9 @@ class ExchangeRate(models.Model):
     exchange_rate_to_chf = models.DecimalField(max_digits=12,
                                                decimal_places=5)
 
+    def exchange(_currency_id, _base_currency):
+        rate = ExchangeRate.objects.filter(name=_currency_id).latest('date')
+        return round(rate.exchange_rate_to_chf * _base_currency,2)
+
     def __str__(self):
         return str(self.name)
diff --git a/django/didgeridoo/webshop/templates/registration/login.html b/django/didgeridoo/webshop/templates/registration/login.html
index 4ff603e..358cdbb 100644
--- a/django/didgeridoo/webshop/templates/registration/login.html
+++ b/django/didgeridoo/webshop/templates/registration/login.html
@@ -3,10 +3,10 @@
 {% block section_title %}Login{% endblock %}
 
 {% block content %}
-  <form method="post">
+  <form id="login" name="login" method="post">
     {% csrf_token %}
     {{ form.as_p }}
-    <button type="submit">Login</button>
+    <button name="button_login" type="submit">Login</button>
     <p><a href="{% url 'registration' %}">Go to registration.</a></p>
   </form>
 {% endblock %}
diff --git a/django/didgeridoo/webshop/templates/registration/register.html b/django/didgeridoo/webshop/templates/registration/register.html
index 032758f..5e5d2f4 100644
--- a/django/didgeridoo/webshop/templates/registration/register.html
+++ b/django/didgeridoo/webshop/templates/registration/register.html
@@ -8,12 +8,12 @@
             Please correct the error{{ form.errors|pluralize }} below.
         </p>
  {% endif %}
-  <form action="" method="post" novalidate>
+  <form id="register" name="register" action="" method="post" novalidate>
     <table>
       {{ user_form.as_table }}
       {{ profile_form.as_table }}
     </table>
     {% csrf_token %}
-    <button type="submit">Register</button>
+    <button name="button_register" type="submit">Register</button>
   </form>
 {% endblock %}
diff --git a/django/didgeridoo/webshop/templates/webshop/article_details.html b/django/didgeridoo/webshop/templates/webshop/article_details.html
index 3c1c3bb..8703063 100644
--- a/django/didgeridoo/webshop/templates/webshop/article_details.html
+++ b/django/didgeridoo/webshop/templates/webshop/article_details.html
@@ -4,8 +4,8 @@
     <h3>Description</h3>
     <p>{{ article.description }}</p>
     <p><b>Stock:</b> {{ article.stock }}</p>
-    <p><b>Status:</b> {{ article.status}}</p>
-    <p><b>Price:</b> {{ article.price_in_chf }}</p>
+    <p><b>Status:</b> {{ article.status }}</p>
+    <p><b>Price:</b> {{ article.price_in_chf }} {{ currency_name }}</p>
     {% for picture in picture_list %}
         <p><img src="{{ MEDIA_URL }}{{ picture.image }}" width="200" /></p>
     {% endfor %}
diff --git a/django/didgeridoo/webshop/templates/webshop/base.html b/django/didgeridoo/webshop/templates/webshop/base.html
index 58f7905..e52a4f4 100644
--- a/django/didgeridoo/webshop/templates/webshop/base.html
+++ b/django/didgeridoo/webshop/templates/webshop/base.html
@@ -3,7 +3,6 @@
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
-    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
     <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
 
     <!-- Add additional CSS in static file -->
diff --git a/django/didgeridoo/webshop/templates/webshop/category.html b/django/didgeridoo/webshop/templates/webshop/category.html
index 5ea3a14..fe541b4 100644
--- a/django/didgeridoo/webshop/templates/webshop/category.html
+++ b/django/didgeridoo/webshop/templates/webshop/category.html
@@ -1,7 +1,7 @@
 {% extends "webshop/base.html" %}
 {% block section_title %}Category Overview{% endblock %}
 {% block content %}
-  {% if article_list %}
+  {% if articles_list %}
     <table class="table">
       <tr class="table_header">
         <th scope="col">ID</th>
@@ -10,7 +10,7 @@
         <th scope="col">STOCK</th>
         <th scope="col">PRICE</th>
       </tr>
-      {% for article in article_list %}
+      {% for article in articles_list %}
         <tr class="table_content">
           <td scope="col">{{ article.id }}</td>
           <td scope="col">
@@ -19,7 +19,7 @@
             </a></td>
           <td scope="col">{{ article.category }}</td>
           <td scope="col">{{ article.stock }}</td>
-          <td scope="col">{{ article.price_in_chf }}</td>
+          <td scope="col">{{ article.price_in_chf }} {{ currency_name }}</td>
         </tr>
       {% endfor %}
     </table>
diff --git a/django/didgeridoo/webshop/templates/webshop/index.html b/django/didgeridoo/webshop/templates/webshop/index.html
index 4d13d5b..f04590a 100644
--- a/django/didgeridoo/webshop/templates/webshop/index.html
+++ b/django/didgeridoo/webshop/templates/webshop/index.html
@@ -22,7 +22,7 @@
           </td>
           <td scope="col">{{ article.category }}</td>
           <td scope="col">{{ article.stock }}</td>
-          <td scope="col">{{ article.price_in_chf }}</td>
+          <td scope="col">{{ article.price_in_chf }} {{ currency_name }}</td>
         </tr>
       {% endfor %}
     </table>
diff --git a/django/didgeridoo/webshop/templates/webshop/nav.html b/django/didgeridoo/webshop/templates/webshop/nav.html
index 169d043..9b01f06 100644
--- a/django/didgeridoo/webshop/templates/webshop/nav.html
+++ b/django/didgeridoo/webshop/templates/webshop/nav.html
@@ -19,24 +19,19 @@
           <a href="{% url 'login' %}">LOGIN</a>
         </li>
         {% endif %}
-        <!-- https://pypi.python.org/pypi/django-select-multiple-field -->
-        <form method="POST" novalidate>
-          <select name="currency_update" id="id_currency_update">
-              <option value="CHF">CHF</option>
-              <option value="USD">USD</option>
-              <option value="GBP">GBP</option>
-              <option value="JPY">JPY</option>
-          </select>
+        <li>
+            {% if article_view %}
+          <form id="currency" name="currency" action="" method="POST" novalidate>
+            {{ currencies_form.as_ul }}
+            <li>
+              <input type="submit" value="Select">
+            </li>
           {% csrf_token %}
-        </form>
+          </form>
+          {% endif %}
+        </li>
       </ul>
     </div>
-    <!--
-    Es wird auf id im app.js file gemached.
-    die URL wird im app.js gesetzt
-    und mit urls.py weitergereicht.
-    dann auf name im views.py gemached und ausgeführt.
-    -->
   </div>
 </nav>
 {% endblock %}
diff --git a/django/didgeridoo/webshop/views.py b/django/didgeridoo/webshop/views.py
index 040f522..84ab9e4 100644
--- a/django/didgeridoo/webshop/views.py
+++ b/django/didgeridoo/webshop/views.py
@@ -3,77 +3,159 @@ from django.shortcuts import get_object_or_404, render
 from django.contrib.auth.decorators import login_required
 from django.contrib.auth.models import User
 from django.contrib.auth.forms import UserCreationForm
-from webshop.models import (Article,
-                            Category,
-                            ArticleStatus,
-                            Person,
-                            City,
-                            Picture)
+from webshop.models import (Article, Category, ArticleStatus, Person,
+                            City, Picture)
 from webshop.forms import RegistrationForm
 
+from currencies.models import ExchangeRate, ExchangeRate_name
+from currencies.forms import CurrenciesForm
+
 
 # Create your views here.
 
-
-def index(request):
+def get_categories():
     parent_category_list = Category.objects.filter(parent_category=None)
     category_list = {}
-    hidden = ArticleStatus.objects.get(name="hidden")
-    articles_list = Article.objects.all().exclude(status=hidden.id)
 
     for i in parent_category_list:
             category_list.update(
                 {i: Category.objects.filter(parent_category=i.id)})
+    return category_list
+
+
+def get_hidden_status_id():
+    hidden_status = ArticleStatus.objects.get(name="hidden")
+    return hidden_status.id
+
+
+def index(request):
+    category_list = get_categories()
+    articles = Article.objects.all().exclude(status=get_hidden_status_id())
+    articles_list = list(articles)
+    currencies_form = CurrenciesForm
+    rate=ExchangeRate
+    article_view = True
+    currency_name = "CHF"
+
+    if not 'currency' in request.session:
+        request.session['currency'] = None
+
+    if request.method == 'POST':
+        currencies_form = CurrenciesForm(request.POST)
+        if currencies_form.is_valid():
+            cf = currencies_form.cleaned_data
+            if cf['currencies']:
+                selection = cf['currencies']
+                request.session['currency'] = selection.id
+                currency_name=ExchangeRate_name.objects.get(id=selection.id)
+            else:
+                request.session['currency'] = None
+
+    if request.session['currency']:
+        currency = request.session['currency']
+        for idx, article in enumerate(articles_list):
+            article.price_in_chf = rate.exchange(currency, article.price_in_chf)
+            articles_list[idx] = article
+            currency_name=ExchangeRate_name.objects.get(id=currency)
 
     return render(request,
-                  'webshop/index.html',
-                  {'category_list': category_list,
-                   'articles_list': articles_list})
+                'webshop/index.html',
+                {'category_list': category_list,
+                 'articles_list': articles_list,
+                 'currencies_form': currencies_form,
+                 'article_view': article_view,
+                 'currency_name': currency_name})
 
 
 def articles_in_category(request, category_id):
+    category_list = get_categories()
     selected_category = Category.objects.get(id=category_id)
-    hidden = ArticleStatus.objects.get(name="hidden")
+    articles = Article.objects.filter(
+        category=selected_category.id).exclude(status=get_hidden_status_id())
+    articles_list = list(articles)
+    currencies_form = CurrenciesForm
+    rate=ExchangeRate
+    article_view = True
+    currency_name = "CHF"
 
-    article_list = Article.objects.filter(
-        category=selected_category.id).exclude(status=hidden.id)
+    if not 'currency' in request.session:
+        request.session['currency'] = None
 
-    parent_category_list = Category.objects.filter(parent_category=None)
-    category_list = {}
+    if request.method == 'POST':
+        currencies_form = CurrenciesForm(request.POST)
+        if currencies_form.is_valid():
+            cf = currencies_form.cleaned_data
+            if cf['currencies']:
+                selection = cf['currencies']
+                request.session['currency'] = selection.id
+                currency_name=ExchangeRate_name.objects.get(id=selection.id)
+            else:
+                request.session['currency'] = None
 
-    for i in parent_category_list:
-            category_list.update(
-                {i: Category.objects.filter(parent_category=i.id)})
+    if request.session['currency']:
+        currency = request.session['currency']
+        for idx, article in enumerate(articles_list):
+            article.price_in_chf = rate.exchange(currency, article.price_in_chf)
+            articles_list[idx] = article
+            currency_name=ExchangeRate_name.objects.get(id=currency)
 
     return render(request, 'webshop/category.html',
-                  {'article_list': article_list,
+                  {'articles_list': articles_list,
                    'category_list': category_list,
+                   'currencies_form': currencies_form,
+                   'article_view': article_view,
+                   'currency_name': currency_name,
                    'category': selected_category})
 
 
 def article_details(request, article_id):
-    parent_category_list = Category.objects.filter(parent_category=None)
-    category_list = {}
+    category_list = get_categories()
+    currencies_form = CurrenciesForm
+    rate=ExchangeRate
+    article_view = True
+    currency_name = "CHF"
 
-    for i in parent_category_list:
-            category_list.update(
-                {i: Category.objects.filter(parent_category=i.id)})
+    if not 'currency' in request.session:
+        request.session['currency'] = None
 
     article = get_object_or_404(Article, pk=article_id)
     picture_list = Picture.objects.filter(article=article_id)
+
+    if request.method == 'POST':
+        currencies_form = CurrenciesForm(request.POST)
+        if currencies_form.is_valid():
+            cf = currencies_form.cleaned_data
+            if cf['currencies']:
+                selection = cf['currencies']
+                request.session['currency'] = selection.id
+                currency_name=ExchangeRate_name.objects.get(id=selection.id)
+            else:
+                request.session['currency'] = None
+
+    if request.session['currency']:
+        currency = request.session['currency']
+        article.price_in_chf = rate.exchange(currency, article.price_in_chf)
+        currency_name=ExchangeRate_name.objects.get(id=currency)
+
     return render(request, 'webshop/article_details.html',
                   {'article': article,
                    'category_list': category_list,
+                   'currencies_form': currencies_form,
+                   'article_view': article_view,
+                   'currency_name': currency_name,
                    'picture_list': picture_list})
 
 @login_required
 def profile(request):
+    category_list = get_categories()
     person = Person.objects.get(user=request.user)
     return render(request, 'registration/profile.html',
-                  {'person': person})
+                  {'person': person,
+                   'category_list': category_list})
 
 
 def registration(request):
+    category_list = get_categories()
     if request.method == 'POST':
             profile_form = RegistrationForm(request.POST)
             user_form = UserCreationForm(request.POST)
@@ -99,4 +181,5 @@ def registration(request):
         user_form = UserCreationForm
     return render(request, 'registration/register.html',
                   {'profile_form': profile_form,
+                   'category_list': category_list,
                    'user_form': user_form})