diff --git a/openslides/participant/templates/participant/overview.html b/openslides/participant/templates/participant/overview.html
index 6a4eedc8f..1685bbadb 100644
--- a/openslides/participant/templates/participant/overview.html
+++ b/openslides/participant/templates/participant/overview.html
@@ -4,32 +4,33 @@
 {% block content %}
     <h1>{% trans "Participants" %}</h1>
 
-    <p><form action="{{request.url}}" name="filter" method="get">
+    <p><form action="{{request.url}}" name="filter" method="post">
+        {% csrf_token %}
         {%trans "Filter" %}:
         <select class="default-input" name="gender" onchange="document.forms['filter'].submit()">
             <option value="---">-- {%trans "Gender" %}--</option>
-            <option value="male" {% if 'male' in request.GET.gender %}selected{% endif %}>{%trans "Male" %}</option>
-            <option value="female" {% if 'female' in request.GET.gender %}selected{% endif %}>{%trans "Female" %}</option>
-            <option value="none" {% if 'none' in request.GET.gender %}selected{% endif %}>{%trans "Not specified" %}</option>
+            <option value="male" {% if 'male' in sortfilter.gender %}selected{% endif %}>{%trans "Male" %}</option>
+            <option value="female" {% if 'female' in sortfilter.gender %}selected{% endif %}>{%trans "Female" %}</option>
+            <option value="none" {% if 'none' in sortfilter.gender %}selected{% endif %}>{%trans "Not specified" %}</option>
         </select>
         <select class="default-input" name="group" onchange="document.forms['filter'].submit()">
             <option value="---">-- {%trans "Group" %}--</option>
             {% for group in groups %}
-                <option value="{{ group }}" {% if group in request.GET.group %}selected{% endif %}>
+                <option value="{{ group }}" {% if group in sortfilter.group %}selected{% endif %}>
                 {{ group }}</option>
             {% endfor %}
         </select>
         <select class="default-input" name="type" onchange="document.forms['filter'].submit()">
             <option value="---">-- {%trans "Type" %}--</option>
-            <option value="delegate" {% if 'delegate' in request.GET.type %}selected{% endif %}>{%trans "Delegate" %}</option>
-            <option value="observer" {% if 'observer' in request.GET.type %}selected{% endif %}>{%trans "Observer" %}</option>
-            <option value="staff" {% if 'staff' in request.GET.type %}selected{% endif %}>{%trans "Staff" %}</option>
-            <option value="guest" {% if 'guest' in request.GET.type %}selected{% endif %}>{%trans "Guest" %}</option>
+            <option value="delegate" {% if 'delegate' in sortfilter.type %}selected{% endif %}>{%trans "Delegate" %}</option>
+            <option value="observer" {% if 'observer' in sortfilter.type %}selected{% endif %}>{%trans "Observer" %}</option>
+            <option value="staff" {% if 'staff' in sortfilter.type %}selected{% endif %}>{%trans "Staff" %}</option>
+            <option value="guest" {% if 'guest' in sortfilter.type %}selected{% endif %}>{%trans "Guest" %}</option>
         </select>
         <select class="default-input" name="committee" onchange="document.forms['filter'].submit()">
             <option value="---">-- {%trans "Committee" %}--</option>
             {% for committee in committees %}
-                <option value="{{ committee }}" {% if committee in request.GET.committee %}selected{% endif %}>
+                <option value="{{ committee }}" {% if committee in sortfilter.committee %}selected{% endif %}>
                 {{ committee }}</option>
             {% endfor %}
         </select>
@@ -38,15 +39,15 @@
     {{ users|length }} {% trans "Participant" %}
     <table>
         <tr>
-            <th><a href="?sort=first_name{% if 'first_name' in request.GET.sort and 'reverse' not in request.GET %}&reverse{%endif%}">{%trans "First Name" %}</a></th>
-            <th><a href="?sort=last_name{% if 'last_name' in request.GET.sort and 'reverse' not in request.GET %}&reverse{%endif%}">{%trans "Last Name" %}</a></th>
-            <th><a href="?sort=group{% if 'group' in request.GET.sort and 'reverse' not in request.GET %}&reverse{%endif%}">{%trans "Group" %}</a></th>
-            <th><a href="?sort=type{% if 'type' in request.GET.sort and 'reverse' not in request.GET %}&reverse{%endif%}">{%trans "Type" %}</a></th>
-            <th><a href="?sort=committee{% if 'committee' in request.GET.sort and 'reverse' not in request.GET %}&reverse{%endif%}">{%trans "Committee" %}</a></th>
+            <th><a href="?sort=first_name&reverse={% if 'first_name' in sortfilter.sort and 'reverse' not in sortfilter %}1{% else %}---{%endif%}">{%trans "First Name" %}</a></th>
+            <th><a href="?sort=last_name&reverse={% if 'last_name' in sortfilter.sort and 'reverse' not in sortfilter %}1{% else %}---{%endif%}">{%trans "Last Name" %}</a></th>
+            <th><a href="?sort=group&reverse={% if 'group' in sortfilter.sort and 'reverse' not in sortfilter %}1{% else %}---{%endif%}">{%trans "Group" %}</a></th>
+            <th><a href="?sort=type&reverse={% if 'type' in sortfilter.sort and 'reverse' not in sortfilter %}1{% else %}---{%endif%}">{%trans "Type" %}</a></th>
+            <th><a href="?sort=committee&reverse={% if 'committee' in sortfilter.sort and 'reverse' not in sortfilter %}1{% else %}---{%endif%}">{%trans "Committee" %}</a></th>
             {% if perms.participant.can_manage_participant %}
-            <th><a href="?sort=username{% if 'username' in request.GET.sort and 'reverse' not in request.GET %}&reverse{%endif%}">{%trans "Username" %}</a></th>
-            <th><a href="?sort=email{% if 'email' in request.GET.sort and 'reverse' not in request.GET %}&reverse{%endif%}">{%trans "Email" %}</a></th>
-            <th><a href="?sort=last_login{% if 'last_login' in request.GET.sort and 'reverse' not in request.GET %}&reverse{%endif%}">{%trans "Last Login" %}</a></th>
+            <th><a href="?sort=username&reverse={% if 'username' in sortfilter.sort and 'reverse' not in sortfilter %}1{% else %}---{%endif%}">{%trans "Username" %}</a></th>
+            <th><a href="?sort=email&reverse={% if 'email' in sortfilter.sort and 'reverse' not in sortfilter %}1{% else %}---{%endif%}">{%trans "Email" %}</a></th>
+            <th><a href="?sort=last_login&reverse={% if 'last_login' in sortfilter.sort and 'reverse' not in sortfilter %}1{% else %}---{%endif%}">{%trans "Last Login" %}</a></th>
             <th>{%trans "Actions" %}</th>
             {% endif %}
         </tr>
diff --git a/openslides/participant/views.py b/openslides/participant/views.py
index b17c0900d..b327d8f17 100644
--- a/openslides/participant/views.py
+++ b/openslides/participant/views.py
@@ -11,6 +11,9 @@
 """
 
 import csv
+from urllib import urlencode
+from urlparse import parse_qs
+
 from django.http import HttpResponse
 from django.shortcuts import redirect
 from django.template import RequestContext
@@ -33,24 +36,36 @@ from django.db.models import Avg, Max, Min, Count
 @permission_required('participant.can_see_participant')
 @template('participant/overview.html')
 def get_overview(request):
-    query = User.objects
-    if 'gender' in request.GET and '---' not in request.GET['gender']:
-        query = query.filter(profile__gender__iexact=request.GET['gender'])
-    if 'group' in request.GET and '---' not in request.GET['group']:
-        query = query.filter(profile__group__iexact=request.GET['group'])
-    if 'type' in request.GET and '---' not in request.GET['type']:
-        query = query.filter(profile__type__iexact=request.GET['type'])
-    if 'committee' in request.GET and '---' not in request.GET['committee']:
-        query = query.filter(profile__committee__iexact=request.GET['committee'])
     try:
-        sort = request.GET['sort']
-        if sort in ['first_name', 'last_name','username','last_login','email']:
-            query = query.order_by(sort)
-        elif sort in ['group', 'type', 'committee']:
-            query = query.order_by('profile__%s' % sort)
+        sortfilter = parse_qs(request.COOKIES['participant_sortfilter'])
     except KeyError:
-        pass
-    if 'reverse' in request.GET:
+        sortfilter = {}
+
+    for value in ['gender', 'group', 'type', 'committee', 'sort', 'reverse']:
+        if value in request.REQUEST:
+            if request.REQUEST[value] == '---':
+                try:
+                    del sortfilter[value]
+                except KeyError:
+                    pass
+            else:
+                sortfilter[value] = [request.REQUEST[value]]
+
+    query = User.objects
+    if 'gender' in sortfilter:
+        query = query.filter(profile__gender__iexact=sortfilter['gender'][0])
+    if 'group' in sortfilter:
+        query = query.filter(profile__group__iexact=sortfilter['group'][0])
+    if 'type' in sortfilter:
+        query = query.filter(profile__type__iexact=sortfilter['type'][0])
+    if 'committee' in sortfilter:
+        query = query.filter(profile__committee__iexact=sortfilter['committee'][0])
+    if 'sort' in sortfilter:
+        if sortfilter['sort'][0] in ['first_name', 'last_name','username','last_login','email']:
+            query = query.order_by(sortfilter['sort'][0])
+        elif sortfilter['sort'][0] in ['group', 'type', 'committee']:
+            query = query.order_by('profile__%s' % sortfilter['sort'][0])
+    if 'reverse' in sortfilter:
         query = query.reverse()
 
     userlist = query.all()
@@ -67,6 +82,8 @@ def get_overview(request):
         'users': users,
         'groups': groups,
         'committees': committees,
+        'cookie': ['participant_sortfilter', urlencode(sortfilter, doseq=True)],
+        'sortfilter': sortfilter,
     }
 
 @permission_required('participant.can_manage_participant')