function confirmTell(frm)
{
  var err = '';
  if(document.form1.user_name.value == '')
  {
    err += 'Please provide your name. \n';
  }
  
  if(document.form1.user_email.value == '')
  {
    err += 'Please provide your email address. \n';
  }

  if(document.form1.user_friend1.value == '')
  {
    err += 'Please provide at least one friend\'s email address. \n';
  }
  
  if(err == '')
  {
    return true;
  }
  else
  {
	alert(err);
    return false;
  }

}