function validate()
{
	f=document.mailform;
	if(f.FirstName.value==''){ return(err(f.FirstName,'You must supply your first name')); }
		if(f.LastName.value==''){ return(err(f.LastName,'You must supply your last name')); }
	if(f.EmailAddress.value=='' || f.EmailAddress.value.indexOf('@')==-1 || f.EmailAddress.value.indexOf('.')==-1)
		{
		return(err(f.EmailAddress,'You must supply a valid email address'));
		}
	return true;
}



function err(field,message)
{
	alert(message);
	field.focus();
	field.select();
	return false;
}