function verificationS()
{
	
	if(document.subscriptionForm.email.value == "") {
		alert("Please enter your email address");
		document.subscriptionForm.email.focus();
		return false;
	}
	else
		if(document.subscriptionForm.email.value.indexOf('@') == -1) {
			alert("It is not an email address, please check it");
			document.subscriptionForm.email.focus();
			return false;
		}
	
	return true
}

function verificationU()
{
	
	if(document.unsubscriptionForm.email.value == "") {
		alert("Please enter your email address");
		document.unsubscriptionForm.email.focus();
		return false;
	}
	else
		if(document.unsubscriptionForm.email.value.indexOf('@') == -1) {
			alert("It is not an email address, please check it");
			document.unsubscriptionForm.email.focus();
			return false;
		}
	
	return true
}