function comment(el) {
	try {
		var success = true;
		if (isBlank(el.name.value)) success = false;
		if (isBlank(el.email.value)) success = false;
		if (isBlank(el.content.value)) success = false;
		if (!success) {
			GetE("comment_error").innerHTML = msg_submit_error;
			return false;
		}
		if (!isEmail(el.email.value)) {
			GetE("comment_error").innerHTML = getMessage(msg_check_email, "E-mail");
			return false;
		}
		return true;
	} catch (ex) {return true;}
}