diff --git a/searx/search.py b/searx/search.py
index 427da3b..0324d4a 100644
--- a/searx/search.py
+++ b/searx/search.py
@@ -384,12 +384,17 @@ class Search(object):
             for pd_name, pd in self.request_data.items():
                 if pd_name.startswith('category_'):
                     category = pd_name[9:]
+
                     # if category is not found in list, skip
                     if category not in categories:
                         continue
 
-                    # add category to list
-                    self.categories.append(category)
+                    if pd != 'off':
+                        # add category to list
+                        self.categories.append(category)
+                    elif category in self.categories:
+                        # remove category from list if property is set to 'off'
+                        self.categories.remove(category)
 
             # if no category is specified for this search,
             # using user-defined default-configuration which
diff --git a/searx/static/themes/oscar/css/oscar.min.css b/searx/static/themes/oscar/css/oscar.min.css
index b8d6fba..72be92c 100644
--- a/searx/static/themes/oscar/css/oscar.min.css
+++ b/searx/static/themes/oscar/css/oscar.min.css
@@ -1,11 +1,14 @@
 html{position:relative;min-height:100%}
 body{margin-bottom:80px}
 .footer{position:absolute;bottom:0;width:100%;height:60px}
-input[type=checkbox]:checked~.label_hide_if_checked{display:none}
-input[type=checkbox]:not(:checked)~.label_hide_if_not_checked{display:none}
-.result_header{margin-bottom:5px;margin-top:20px}.result_header .favicon{margin-bottom:-3px}
-.result_header a{vertical-align:bottom}.result_header a .highlight{font-weight:bold}
-.result-content{margin-top:5px}.result-content .highlight{font-weight:bold}
+input[type=checkbox]:checked+.label_hide_if_checked,input[type=checkbox]:checked+.label_hide_if_not_checked+.label_hide_if_checked{display:none}
+input[type=checkbox]:not(:checked)+.label_hide_if_not_checked,input[type=checkbox]:not(:checked)+.label_hide_if_checked+.label_hide_if_not_checked{display:none}
+.result_header{margin-bottom:5px;margin-top:20px}
+.result_header .favicon{margin-bottom:-3px}
+.result_header a{vertical-align:bottom}
+.result_header a .highlight{font-weight:bold}
+.result-content{margin-top:5px}
+.result-content .highlight{font-weight:bold}
 .result-default{clear:both}
 .result-images{float:left !important}
 .img-thumbnail{margin:5px;max-height:128px;min-height:128px}
@@ -20,3 +23,4 @@ input[type=checkbox]:not(:checked)~.label_hide_if_not_checked{display:none}
 .search_categories{margin:10px 0;text-transform:capitalize}
 .cursor-text{cursor:text !important}
 .cursor-pointer{cursor:pointer !important}
+
diff --git a/searx/static/themes/oscar/less/oscar/checkbox.less b/searx/static/themes/oscar/less/oscar/checkbox.less
index 712e53d..6428b36 100644
--- a/searx/static/themes/oscar/less/oscar/checkbox.less
+++ b/searx/static/themes/oscar/less/oscar/checkbox.less
@@ -1,9 +1,9 @@
 // Hide element if checkbox is checked
-input[type=checkbox]:checked ~ .label_hide_if_checked {
+input[type=checkbox]:checked + .label_hide_if_checked, input[type=checkbox]:checked + .label_hide_if_not_checked + .label_hide_if_checked {
   display:none;
 }
 
 // Hide element if checkbox is not checked
-input[type=checkbox]:not(:checked) ~ .label_hide_if_not_checked {
+input[type=checkbox]:not(:checked) + .label_hide_if_not_checked, input[type=checkbox]:not(:checked) + .label_hide_if_checked + .label_hide_if_not_checked {
   display:none;
 }
diff --git a/searx/templates/oscar/base.html b/searx/templates/oscar/base.html
index 466756b..42cd4e9 100644
--- a/searx/templates/oscar/base.html
+++ b/searx/templates/oscar/base.html
@@ -36,8 +36,10 @@
     </script>
     <noscript>
         <style type="text/css">
-            .tab-content > .active_if_nojs {display: block;}
+            .tab-content > .active_if_nojs, .active_if_nojs {display: block !important; visibility: visible !important;}
+            .margin_top_if_nojs {margin-top: 20px;}
             .hide_if_nojs {display: none !important;overflow:none !important;}
+            .disabled_if_nojs {pointer-events: none; cursor: default; text-decoration: line-through;}
         </style>
     </noscript>
 </head>
diff --git a/searx/templates/oscar/categories.html b/searx/templates/oscar/categories.html
index 82ddcf6..f38cce5 100644
--- a/searx/templates/oscar/categories.html
+++ b/searx/templates/oscar/categories.html
@@ -1,6 +1,22 @@
-<div id="categories" class="btn-group btn-toggle" data-toggle="buttons">
+<!-- used if scripts are disabled -->
+<noscript>
+<div id="categories" class="btn-group btn-toggle">
+{% for category in categories %}
+    <!--<div class="checkbox">-->
+        <input class="hidden" type="checkbox" id="checkbox_{{ category|replace(' ', '_') }}_nojs" name="category_{{ category }}" {% if category in selected_categories %}checked="checked"{% endif %} />
+        <label class="btn btn-sm btn-primary active label_hide_if_not_checked" for="checkbox_{{ category|replace(' ', '_') }}_nojs">{{ _(category) }}</label>
+        <label class="btn btn-sm btn-default label_hide_if_checked" for="checkbox_{{ category|replace(' ', '_') }}_nojs">{{ _(category) }}</label>
+    <!--</div>-->
+    {% if category in selected_categories %}<input class="hidden" type="checkbox" id="checkbox_{{ category|replace(' ', '_') }}_dis_activation" name="category_{{ category }}" value="off" checked="checked"/>{% endif %}
+{% endfor %}
+</div>
+</noscript>
+
+<div id="categories" class="btn-group btn-toggle hide_if_nojs" data-toggle="buttons">
 {% for category in categories %}
     <label class="btn btn-sm {% if category in selected_categories %}btn-primary active{% else %}btn-default{% endif %}" data-btn-class="primary">
         <input class="hidden" type="checkbox" id="checkbox_{{ category|replace(' ', '_') }}" name="category_{{ category }}" {% if category in selected_categories %}checked="checked"{% endif %} />{{ _(category) }}</label>
 {% endfor %}
 </div>
+
+
diff --git a/searx/templates/oscar/result_templates/default.html b/searx/templates/oscar/result_templates/default.html
index b2430ed..23af61f 100644
--- a/searx/templates/oscar/result_templates/default.html
+++ b/searx/templates/oscar/result_templates/default.html
@@ -6,7 +6,7 @@
 <small><a class="text-info" href="https://web.archive.org/web/{{ result.url }}">{{ icon('link') }} {{ _('cached') }}</a></small>
 
 {% if result.embedded %}
-    <small> &bull; <a class="text-info btn-collapse collapsed cursor-pointer media-loader" data-toggle="collapse" data-target="#result-media-{{ index }}" data-btn-text-collapsed="{{ _('show media') }}" data-btn-text-not-collapsed="{{ _('hide media') }}">{{ icon('music') }} {{ _('show media') }}</a></small>
+    <small> &bull; <a class="text-info btn-collapse collapsed cursor-pointer media-loader disabled_if_nojs" data-toggle="collapse" data-target="#result-media-{{ index }}" data-btn-text-collapsed="{{ _('show media') }}" data-btn-text-not-collapsed="{{ _('hide media') }}">{{ icon('music') }} {{ _('show media') }}</a></small>
 {% endif %}
 
 {% if result.embedded %}
diff --git a/searx/templates/oscar/result_templates/map.html b/searx/templates/oscar/result_templates/map.html
index c08e2e7..fd33952 100644
--- a/searx/templates/oscar/result_templates/map.html
+++ b/searx/templates/oscar/result_templates/map.html
@@ -7,15 +7,15 @@
 <small><a class="text-info" href="https://web.archive.org/web/{{ result.pretty_url }}">{{ icon('link') }} {{ _('cached') }}</a></small>
 
 {% if (result.latitude and result.longitude) or result.boundingbox %}
-    <small> &bull; <a class="text-info btn-collapse collapsed searx_init_map cursor-pointer" data-toggle="collapse" data-target="#result-map-{{ index }}" data-leaflet-target="osm-map-{{ index }}" data-map-lon="{{ result.longitude }}" data-map-lat="{{ result.latitude }}" {% if result.boundingbox %}data-map-boundingbox='{{ result.boundingbox|tojson|safe }}'{% endif %} {% if result.geojson %}data-map-geojson='{{ result.geojson|tojson|safe }}'{% endif %} data-btn-text-collapsed="{{ _('show map') }}" data-btn-text-not-collapsed="{{ _('hide map') }}">{{ icon('globe') }} {{ _('show map') }}</a></small>
+    <small> &bull; <a class="text-info btn-collapse collapsed searx_init_map cursor-pointer disabled_if_nojs" data-toggle="collapse" data-target="#result-map-{{ index }}" data-leaflet-target="osm-map-{{ index }}" data-map-lon="{{ result.longitude }}" data-map-lat="{{ result.latitude }}" {% if result.boundingbox %}data-map-boundingbox='{{ result.boundingbox|tojson|safe }}'{% endif %} {% if result.geojson %}data-map-geojson='{{ result.geojson|tojson|safe }}'{% endif %} data-btn-text-collapsed="{{ _('show map') }}" data-btn-text-not-collapsed="{{ _('hide map') }}">{{ icon('globe') }} {{ _('show map') }}</a></small>
 {% endif %}
 
 {% if result.osm and (result.osm.type and result.osm.id) %}
-    <small> &bull; <a class="text-info btn-collapse collapsed cursor-pointer searx_overpass_request" data-toggle="collapse" data-target="#result-overpass-{{ index }}" data-osm-type="{{ result.osm.type }}" data-osm-id="{{ result.osm.id }}" data-result-table="result-overpass-table-{{ index }}" data-result-table-loadicon="result-overpass-table-loading-{{ index }}" data-btn-text-collapsed="{{ _('show details') }}" data-btn-text-not-collapsed="{{ _('hide details') }}">{{ icon('map-marker') }} {{ _('show details') }}</a></small>
+    <small> &bull; <a class="text-info btn-collapse collapsed cursor-pointer searx_overpass_request disabled_if_nojs" data-toggle="collapse" data-target="#result-overpass-{{ index }}" data-osm-type="{{ result.osm.type }}" data-osm-id="{{ result.osm.id }}" data-result-table="result-overpass-table-{{ index }}" data-result-table-loadicon="result-overpass-table-loading-{{ index }}" data-btn-text-collapsed="{{ _('show details') }}" data-btn-text-not-collapsed="{{ _('hide details') }}">{{ icon('map-marker') }} {{ _('show details') }}</a></small>
 {% endif %}
 
 {# {% if (result.latitude and result.longitude) %}
-    <small> &bull; <a class="text-info btn-collapse collapsed cursor-pointer" data-toggle="collapse" data-target="#result-geodata-{{ index }}" data-btn-text-collapsed="{{ _('show geodata') }}" data-btn-text-not-collapsed="{{ _('hide geodata') }}">{{ icon('map-marker') }} {{ _('show geodata') }}</a></small>
+    <small> &bull; <a class="text-info btn-collapse collapsed cursor-pointer disabled_if_nojs" data-toggle="collapse" data-target="#result-geodata-{{ index }}" data-btn-text-collapsed="{{ _('show geodata') }}" data-btn-text-not-collapsed="{{ _('hide geodata') }}">{{ icon('map-marker') }} {{ _('show geodata') }}</a></small>
 {% endif %} #}
 
 <div class="container-fluid">
diff --git a/searx/templates/oscar/result_templates/videos.html b/searx/templates/oscar/result_templates/videos.html
index c3d02c1..7e773c6 100644
--- a/searx/templates/oscar/result_templates/videos.html
+++ b/searx/templates/oscar/result_templates/videos.html
@@ -6,7 +6,7 @@
 <small><a class="text-info" href="https://web.archive.org/web/{{ result.url }}">{{ icon('link') }} {{ _('cached') }}</a></small>
 
 {% if result.embedded %}
-    <small> &bull; <a class="text-info btn-collapse collapsed cursor-pointer media-loader" data-toggle="collapse" data-target="#result-video-{{ index }}" data-btn-text-collapsed="{{ _('show video') }}" data-btn-text-not-collapsed="{{ _('hide video') }}">{{ icon('film') }} {{ _('show video') }}</a></small>
+    <small> &bull; <a class="text-info btn-collapse collapsed cursor-pointer media-loader disabled_if_nojs" data-toggle="collapse" data-target="#result-video-{{ index }}" data-btn-text-collapsed="{{ _('show video') }}" data-btn-text-not-collapsed="{{ _('hide video') }}">{{ icon('film') }} {{ _('show video') }}</a></small>
 {% endif %}
 
 {% if result.embedded %}
diff --git a/searx/templates/oscar/search.html b/searx/templates/oscar/search.html
index 4b1f8b6..e48c80f 100644
--- a/searx/templates/oscar/search.html
+++ b/searx/templates/oscar/search.html
@@ -3,7 +3,7 @@
     <div class="input-group col-sm-12">
         <input type="search" name="q" class="form-control" id="q" placeholder="{{ _('Search for...') }}" autocomplete="off" value="{{ q }}">
         <span class="input-group-btn">
-            <button type="submit" class="btn btn-default">{{ icon('search') }}<span class="sr-only">{{ _('Start search') }}</span></button>
+            <button type="submit" class="btn btn-default"><span class="hide_if_nojs">{{ icon('search') }}</span><span class="hidden active_if_nojs">{{ _('Start search') }}</span></button>
         </span>
     </div>
     <div class="search_categories">
diff --git a/searx/templates/oscar/search_full.html b/searx/templates/oscar/search_full.html
index 673f239..b1fe39e 100644
--- a/searx/templates/oscar/search_full.html
+++ b/searx/templates/oscar/search_full.html
@@ -4,12 +4,12 @@
     <div class="input-group col-md-8 col-md-offset-2">
         <input type="search" name="q" class="form-control input-lg autofocus" id="q" placeholder="{{ _('Search for...') }}" autocomplete="off" value="{{ q }}">
         <span class="input-group-btn">
-            <button type="submit" class="btn btn-default input-lg">{{ icon('search') }}<span class="sr-only">{{ _('Start search') }}</span></button>
+            <button type="submit" class="btn btn-default input-lg"><span class="hide_if_nojs">{{ icon('search') }}</span><span class="hidden active_if_nojs">{{ _('Start search') }}</span></button>
         </span>
     </div>
 
-    <button type="button" class="btn btn-link btn-collapse center-block collapsed" data-toggle="collapse" data-target="#search_categories" data-btn-text-collapsed="{{ _('Show search filters') }}" data-btn-text-not-collapsed="{{ _('Hide search filters') }}">{{ _('Show search filters') }}</button>
-    <div class="row collapse" id="search_categories">
+    <button type="button" class="btn btn-link btn-collapse center-block collapsed hide_if_nojs" data-toggle="collapse" data-target="#search_categories" data-btn-text-collapsed="{{ _('Show search filters') }}" data-btn-text-not-collapsed="{{ _('Hide search filters') }}">{{ _('Show search filters') }}</button>
+    <div class="row collapse active_if_nojs margin_top_if_nojs" id="search_categories">
         <div class="col-md-12 text-center">
             {% include 'oscar/categories.html' %}
         </div>