function show_waiting () {
 
	document.getElementById("signupDiv").style.display = "none";
	document.getElementById("signupWorkingDiv").style.display = "block";
}
 
function do_signup () {

	var email = document.getElementById("newsletterEmail").value;

	var patt1 = /^[a-zA-Z0-9.\-\_]+\@{1,1}[a-zA-Z0-9.-]+\.([a-zA-Z0-9.]+)$/

	// Check email address
	if (patt1.test(email)) {
		show_waiting();
		newsletterFrame.location = '/subscribe.php?email='+email;
	} else {
		alert('Invalid Email Address');
	}
}