<?php
require_once('geoplugin.class.php');
$geoplugin = new geoPlugin();

$geoplugin->locate();

switch ($geoplugin->countryCode) {
  case 'US':
    $url = 'US.html';
    break;
  case 'UK':
    $url = 'UK.html';
    break;
  case 'CA':
    $url = 'CA.html';
    break;
  default:
    $url = 'default.html';
}
echo "<a href='/{$url}'>Your own country link</a>";

?>