function goform(url) {
	window.open(url + '?referrer=' + referrer, 'contactform', 'width=600,height=500,left=100,top=10,status=no,toolbar=no,scrollbars=yes,menubar=no,location=no');
}

var referrer = document.referrer;
if (referrer != '') {
	referrer = escape(referrer);
} else {
	referrer = 'untrackable';
}