Payment option based on order total?

[Guest]

if($_SESSION['cart']->total > '5.00')

//give payment option here

}

 

..only seems to work when the page is refreshed, so it's not 100%.

 

presently i'm using something similar to block payment types outside of the us & canada. but since the order total isn't stored in the database at this point in checkout (like the delivery address) i don't know how to successfully do this.

 

     //hide for non-u.s. & canadian
    $check_query = tep_db_query("select zone_id, zone_country_id from " . TABLE_ZONES . " where zone_country_id = '" . (int)$order->delivery['country']['id'] . "' order by zone_id");
    if($check = tep_db_fetch_array($check_query)) {
    //hide for non-u.s. & canadian

      if( $check['zone_country_id'] == 223 || $check['zone_country_id'] == 38) {
         $this->enabled = true;
       }else{
         $this->enabled = false;
       }

 

is there any options that work to block payment type unless the cart is over a certain amount?