Magento: Save country in cookie

Followings are the code of save country in cookie in Magento:-

if($_GET['variablename']==true){
 $storeId = $currentstore;
        $store_url =Mage::getModel('core/store')->load($storeId)->getUrl();
        $cookie = Mage::getModel('core/cookie');
        $period = time()+86400;
        $cookie->set('country', $storeId,$period, '/');
//header("Location:".$store_url);
//exit;
        Mage::app()->getResponse()->setRedirect($store_url);
}

if(isset($_COOKIE['country'])){
        $storeId = $_COOKIE['country'];
        $magento_store_id = Mage::app()->getStore()->getStoreId();
        $redirect_to = Mage::getModel('core/store')->load($storeId)->getUrl();
       
    if($storeId != $magento_store_id)
     {  
       echo "<script type='text/javascript'>window.location.href='".$redirect_to."';</script>";
     }
     }