diff --git a/app/controllers/problems_controller.rb b/app/controllers/problems_controller.rb
--- a/app/controllers/problems_controller.rb
+++ b/app/controllers/problems_controller.rb
@@ -81,11 +81,10 @@
     redirect_to :action => 'list'
   end
 
-  def toggle_avail
-    problem = Problem.find(params[:id])
-    problem.available = !(problem.available)
-    problem.save
-    redirect_to :action => 'list'
+  def toggle
+    @problem = Problem.find(params[:id])
+    @problem.available = !(@problem.available)
+    @problem.save
   end
 
   def turn_all_off
diff --git a/app/views/problems/list.rhtml b/app/views/problems/list.rhtml
--- a/app/views/problems/list.rhtml
+++ b/app/views/problems/list.rhtml
@@ -23,7 +23,7 @@
   </tr>
   
 <% for problem in @problems %>
-  <tr class="<%= (problem.available) ? "available" : "not-available" %>">
+  <tr id="prob-<%= problem.id %>" name="prob-<%= problem.id %>" class="<%= (problem.available) ? "available" : "not-available" %>">
     <% @problem=problem %>
     <td><%= in_place_editor_field :problem, :name, {}, :rows=>1 %></td>
     <td><%= in_place_editor_field :problem, :full_name, {}, :rows=>1 %></td>
@@ -32,7 +32,7 @@
     <td><%= problem.available %></td>
     <td><%= problem.test_allowed %></td>
 
-    <td><%= link_to '[Toggle]', :action => 'toggle_avail', :id => problem.id %></td>
+    <td><%= link_to_remote '[Toggle]', :url => {:action => 'toggle', :id => problem.id } %></td>
     <td><%= link_to '[Stat]', :action => 'stat', :id => problem.id %></td>
     <td><%= link_to '[Show]', :action => 'show', :id => problem %></td>
     <td><%= link_to '[Edit]', :action => 'edit', :id => problem %></td>
@@ -41,7 +41,6 @@
 <% end %>
 </table>
 
-
 <br />
 
 <%= link_to 'New problem', :action => 'new' %>
diff --git a/app/views/problems/toggle.js.rjs b/app/views/problems/toggle.js.rjs
new file mode 100644
--- /dev/null
+++ b/app/views/problems/toggle.js.rjs
@@ -0,0 +1,5 @@
+if @problem.available
+  page["prob-#{@problem.id}"].className = "available"
+else
+  page["prob-#{@problem.id}"].className = "not-available"
+end
\ No newline at end of file