I have the following hook_menu:

  $items['products/autocomplete.json/%'] = array(
    'page callback' => 'json_list_products',
    'access arguments' => array('access products')
  );

Here is the function:

function json_list_products($keywords) {
  
  $items = array();
  foreach(_sql_select_products($keywords) as $product) {
    $items[$product['Product_ID']] = $product['Product_Name'];
  }    
  
  drupal_json_output($items);
}

$keywords is not populated with the value of the % as i suspected - how do I populate this value?

Alex