function comments(formName)
{
	var firstname			= document.myform.comment_my_name.value;
	var email				= document.myform.comment_my_email.value;
	var my_comment			= document.myform.my_comment.value;
	var verification_code	= document.myform.verification_code.value;
	
	if(firstname=="")
	{
		alert("Please enter your name.");
		document.myform.comment_my_name.focus();
		return false;
	}

	if(email=="")
	{
		alert("Please enter your email address.");
		document.myform.comment_my_email.focus();
		return false;
	}
	else
	{
		var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
		if (!filter.test(email))
		{
			alert("Please enter a valid email address.");
			document.myform.comment_my_email.focus();
			return false;
		}
	}

	if(my_comment=="")
	{
		alert("Please enter your comments.");
		document.myform.my_comment.focus();
		return false;
	}
	
	if(verification_code=="")
	{
		alert("Please enter verification code.");
		document.myform.verification_code.focus();
		return false;
	}
	return true;
}