function subscribe() {
    //document.getElementById('subscribe').action = subscribe.php;
    //document.getElementById('subscribe').submit();
    w = window.open('http://www.hirecars.co.uk/new/subscribe/?e='+document.getElementById('email').value, '', 'width=900,height=670,scrollbars=yes');
//setTimeout("alert('1 = ' + w.document.getElementById('frm_email'))", 1000);
//alert("2 = " + document.getElementById('email').value);
 //   w.document.getElementById('frm_email').value = document.getElementById('email').value;
}