Ceeram's selectbox issue

gistfile1.aw

    <?php
        $this->Js->get('#UserRoleId')->event('change',
            $this->Js->request(array(
                'controller'=>'groups',
                'action'=>'index',
                'ext' => 'json'
            ), array(
                'update'=>'#UserGroupId',
                'async' => true,
                'method' => 'post',
                'dataExpression'=>true,
                'data' => $this->Js->serializeForm(array(
                    'isForm' => false,
                    'inline' => true
                ))
            ))
        );
     
What it should look like:

<script>
//<![CDATA[
$(document).ready(function () {
	$("#UserRoleId").bind("change", function (event) {
		$.ajax({
			async:true, 
			data:$("#UserRoleId").closest("form").serialize(), 
			dataType:"html", 
			success:function (data, textStatus) {
				$("#UserGroupId").html(data.groups);
			}, type:"post", url:"\/groups.json"});
			return false;
	});
});
</script>