function validateRating()
{
	var text = document.getElementById("com_text");
	var name = document.getElementById("com_name");
	var email = document.getElementById("com_email");
	var rating = document.forms[1].elements["com_rating"];
	var retval = true;

	if (name.value.length == 0)
	{
		alert("Please enter your name");
		retval = false;
	}
	else if (email.value.length == 0)
	{
		alert("Please enter your email address");
		retval = false;
	}
	else if (text.value.length == 0)
	{
		alert("Please enter a comment");
		retval = false;
	}
	else if (rating.value == 0)
	{
		alert("Please enter a rating");
		retval = false;
	}
	
	return retval;
}