Ajax response from setting page

After install addon(reviews_addon) is creating setting page which has select category list.I'm trying connect my setting page(example backend/info.tpl) to controller (controller/backer/reviews_addon.php) and hope get response from controller with get method by ajax.Please can you write me right syntacx required method from by ajax or ceAjax Cause my ajax request doesn't work.Maybe created a wrong structure or wrong url
-- {__("select_products")} --


You can either add cm-ajax class to the link/form or call the $.ceAjax() method manually: