function randomNumber(lowerLimit,upperLimit,the_number) {
	var random_number=Math.random();
	the_number=(Math.round((random_number*(upperLimit-lowerLimit))+lowerLimit));
	return the_number;
}

function validateForm() {
	if (document.guestbook_form.author.value == "" || document.guestbook_form.text.value == "") {
		alert("Please complete all required fields");
		return false;
	}
}