I am using a select from input in a form, i am using the form helper.

In my controller, how do i access the value selected by the user? i only getting a blank string for all the fields that are slect

<?php echo $form->select($data, array('nodata'=>'No Dataset','dataset1'=>'Dataset 1'), 'No Dataset', 'input-small') ?>

if in the controller i try to do $selected_Data=$data->$this->post(data)
$selected_data is empty

Thanks