JavaScript Form Submit with form_remote_tag

I am trying to submit a form_remote_tag using javascript instead of a regular form submit button. Here is my code:

<%=   form_remote_tag(     :url=> { :controller=>'store', :action=>'add_to_cart_ajax', :id =>, :variation => @variations[i].id },     :html => {:name => 'add_product_form'},     :complete => "showPopWin('/store/show_cart', 600, 400, null, true)",     :failure => 'alert("That item appears to have gone out of stock before you were able to add it to your cart.\n\nPlease refresh this page.")',     :update => 'items'   ) %>   <div class="buttonTicket" onclick="this.up('form').submit();">Add To Cart</div> </form>

When I click the javascript text to submit the form, the ajax doesn't fire. If I use a regular submit button everything works fine. What am I doing wrong?

Any help is greatly appreciated!