Updating from Rails 2 to Rails 3 with JQuery AJAX - ruby-on-rails-3

Question

I am moving a site from Rails 2 to Rails 3 and need to replace the following deprecated methods, with JQuery:
periodically_call_remote
button_to_remote
In the view, there is a button that when pressed executes a callback every 12 seconds:
#index.html.erb (Rails 2.2.2)
<%= periodically_call_remote(:url => { :action => 'check' }, :frequency => '12', :update => 'log') %>
[...]
<div id="generate_test_btn"><%= button_to_remote "Generate Test Order",
:url => { :action => "check", :should_generate => "YES" },
:update => "log" %>
</div>
[...]
#controller
def check
[...Generate content...]
render :partial => "log" and return
end
My Partial Implementation
Not sure how to glue button_to code to the JQuery AJAX stuff
### index.html.erb (Rails 3.1)
<script>
$(document).ready(function(){
$("#generate_test_button").click(function() {
setInterval(updateTest,12000);
});
});
function updateTest(){
$("#log").load("???");
}
</script>
<%= button_to "Generate Test Order",
{ :controller => :test, :action=> :check, :should_generate => "YES" },
{ :remote => true }
%>

Answer 1

in rails 3 you have unobtrusive javascript
so basically, any link you create with :remote => true would call that controller#action but with a js.erb ending
so in your case the button would call the check action in the test controller
if you create a check.js.erb and place it in the views/test folder and have inside
alert("UJS!");
it should pop up once you press that button
also note that you should have the rails-ujs gem and require it in the application.js manifest