CE External Domain Search with redirect to order the domain

gistfile1.html

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<input id="domainname" type="text" name="domainname" value='yournewsite.com' />
<input id="submit-button" type="submit" value="Search Domain">
<script type="text/javascript">
    var ceURL = 'http://yourdomain.com/path-to-your-install/';
    var groupId = 2;
    $('#submit-button').click(function(e) {
        e.preventDefault();
        var fullname = $('#domainname').val();
        if ( fullname.indexOf(".") == -1 ) {
            $('#domainname').addClass('domain_fail');
            $('#domainname').val(fullname+' - not a valid domain name');
        } else {
            var name_array = fullname.split('.');
            $.post(ceURL + 'index.php?fuse=clients&action=checkdomain',
            {
                name: name_array[0],
                tld: name_array[1],
                group: groupId
            }, function(response) {
                if ( response.error ) {
                    alert(response.message);
                } else {
                   window.location = ceURL + 'order.php?step=0&productGroup=' + groupId + '&domainName=' + name_array[0] + '&tld=' + name_array[1];
                }
            }, 'json');
        }
        return false;
    });
</script>