function checkEmail(email){
	var str = email.value;
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
	if (filter.test(str))
		return true;
	else{
		return false;
	}
}

function checkEBull() {
	if (!checkEmail(document.eBulletin.email)) {
		alert('Please check your email address.');
		return false	
	}
	
	return true;
}