function validate_hours(x)
{ 

	submitOK	="True";
	var message = "Form incomplete, please enter your:\n\n";

	if (x.JobNumber.value == "")
 	{ message += "- Assignment number\n";								submitOK="False"; }

	if (x.Name.value == "")
 	{ message += "- Name\n";										submitOK="False"; }

	if (!(isValidEmail(x.Email.value)))
	{message += "- Correct email address\n";								submitOK="False"; }

	if (x.SocialSecurityNumber.value == "")
 	{ message += "- Social security number\n";							submitOK="False"; }

	if (x.CompanyName.value == "")
 	{ message += "- Company name\n";									submitOK="False"; }

	if (x.Position.value == "")
 	{ message += "- Position\n";										submitOK="False"; }

	if (x.HoursWorked.value == "")
 	{ message += "- Hours worked\n";									submitOK="False"; }

	if (x.Supervisors.value == "")
 	{ message += "- Supervisors\n";									submitOK="False"; }

	if (!x.TermsAgreed.checked) 
      { message += "- Tick box to confirm Agreement of Terms and Conditions\n";		submitOK="False"; }
	
	if (submitOK=="False") {
 		alert(message)
 		return false;
 	}

	return true;


} /* --- end of function --- */