[olegalimov]

a так?

<?
if($domain = trim($_GET["domain"]))
$domain = $_GET["domain"];
{
$domain >0;
}
else
{
echo (<div id="openModal">"Нет указан домен!"</div>);
exit ();
}
var domname = domain + ext;
var url="whois.php?domain="+domname;