function validateform() //FullName,TelephoneNumber,EmailAddress,Enquiry
{
	if (QuickForm.FullName.value == '') 
	{
		alert('Please supply your full name');		
		event.returnValue=false;
		return false;
	}
	if (QuickForm.TelephoneNumber.value == '' && QuickForm.Email.value == '') 
	{
		alert('Please supply either your telephone number or your e-mail address (preferably both)');		
		event.returnValue=false;
		return false;
	}
	if (QuickForm.Enquiry.value == '')
	{
		alert('Your enquiry can not be blank');		
		event.returnValue=false;
		return false;
	}
}