Need help with AJAX partial not refreshing browser asking to save .js instead

Hi, when i use the updatepassword action, it does not refresh the ajax partial but forces the browser to save a file why does that happen?

def updatepassword       @user = current_user   return unless request.post?     if User.authenticate(current_user.login, params[:old_password])       if ((params[:password] == params[:password_confirmation]) && ! params[:password_confirmation].blank?)         current_user.password_confirmation = params[:password_confirmation]         current_user.password = params[:password]     if current_user.save           flash[:notice] = "Password successfully updated."           redirect_to login_path #profile_url(current_user.login)         else                     flash[:error] = "An error occured, your password was not changed."       respond_to do |format|       format.js       end         end       else                   flash[:error] = "New password does not match the password confirmation."         @old_password = params[:old_password]       respond_to do |format|       format.js       end       end     else       flash[:error] = "Your old password is incorrect."       respond_to do |format|       format.js       end     end   end

never mind i solved it