function validate(f_elem) {
	if( isValidEmail(f_elem.requiredEmail.value) ) {
		return true;
	}
	alert("Invalid email address.");
	return false;
}
function isValidEmail(the_email) {
	var emailFilter=/^.+@.+\..{2,3}$/;
	var illegalChars= /[\(\)\<\'\>\,\;\:\\\/\"\[\]]/;
	if (!emailFilter.test(the_email) || the_email.match(illegalChars)) {
		return false;
	}
	return true;
}