How to keep the url on the same page after form validation?

[eluser]123wesweat[/eluser]
Hi,

Need some fresh pair of eyes

the following updates the database but i don't know how to "stay" on the same url???

1/ I have a form on a dynamic page
2/ page has content from db (form not yet)
3/ form has an action="test/save"
4/ routing is enable like

Code:

//to get the right content from db
$route['test/banksy'] = "testForm/show_content/1";
$route['test/futura'] = "testForm/show_content/2";
//save form data in db
$route['test/save'] = "testForm/test";

this is my testForm -> test function

Code:

function test(){
        $this->load->helper(array('form','url'));
        $this->load->library("form_validation");
        $this->load->model('forms/test_formc_model');
          
        $content_id = $this->input->post('hidden_content_id');
        $options = array ('content_id' => $content_id);
        $data['showContent'] = $this->test_formc_model->get_content($options);
        $data['hiddenContentID'] = $content_id;
        $val = $this->form_validation;

        $val->set_rules('fname', 'fname', 'trim|required');
        $val->set_rules('lname', 'lname', 'trim|required');
        $val->set_rules('item', 'item', 'trim|required');
        $val->set_rules('email', 'email', 'email|required|valid_email');

        if ($val->run() == FALSE) {
            //show errors
            $this->load->view('testfolder/view_test_mainC', $data);
            
        } else {
                //put in our DB
                $res = $this->test_formc_model->insert_data();
                if($res == 1) {
                    $this->load->view('success');
                    return false;
                } else {
                    $msg = 'hmm, db off.';
                }
        }
    }

Here's a quick example
city2go.net/test/banksy
city2go.net/test/futura

Regards,