i put the following code on a page type:

<?php
$ak = CollectionAttributeKey::getByHandle('city');
$akc = $ak->getController();
$options = $akc->getOptions();
$opts = array();
foreach($options as $opt) {
$opts[$opt->getSelectAttributeOptionID()] = $opt->getSelectAttributeOptionValue();
}
?>

i get error: Fatal error: Call to a member function getController() on a non-object in /home/yossi/public_html/themes/real_estate_template/properties.php on line 44

line 44: $akc = $ak->getController();


does anyone know what my problem is ? , do i need to include some controller or something?

thanks a lot . Aryeh Armon.