function showRequest() {
  if (document.getElementById('contactform_tr').style.display=='block') {
    document.getElementById('contactform_tr').style.display='none'; 
    document.getElementById('requestButton').blur(); 
  } else if (document.getElementById('contactform_tr').style.display == 'none') {
    document.getElementById('contactform_tr').style.display='block'; 
    document.getElementById('requestButton').blur();
  }
}