function send_email()
{
	if (window.document.form_email.email.value.match(/^(.+)@(.+)$/)==null) 
		{
			alert('Your email is invalid!');
			window.document.form_email.email.value="";
			window.document.form_email.email.focus();
		}
	else
		{
			window.location.href='subscribe_add.asp?email=' + window.document.form_email.email.value;
		}
}