submit_to_remote fails on rails 2.2.2 and rails 2.3.2 but fully working with 2.0.2 please give me an answer as soon as possible. its very urgent the code is HTML === <% form_for :todo, @todo, :url => { :action => "update_todo" } do |f| %> <div> <p> <label>Todo</label> <%=f.text_field :name%> </p> <p> <label>Description<label> <%=f.text_area :description,:rows=>3 %> </p> <p> <label>Due date</label> <%=f.text_field :due_date,:class=>"date-pick dp-applied" %> </p> <p> <label>Assign to</label> <%=select("todo", "assign_to", @project.project_teams.map {|u| [User.find (u.user_id).full_name,u.user_id]}.uniq)%> </p> <p> <%= submit_to_remote ''create_btn'', ''Update'', :url => { :action => ''update_todo'',:id=>@project.id,:todo_id=>@todo.id} %> </p> </div> <%end%> Controller =========== def update_todo @todo = Todo.find(params[:todo_id]) @todo.update_attributes(params[:todo]) @todo.save end