function showFriendCatalog(){
  if(document.getElementById('friend_container').style.display == 'none' ){
    document.getElementById('friend_container').style.display = '';
    document.getElementById('f_checkbox').checked = true; 
    document.catalog.f_send.value = '1';
  }else{
    document.getElementById('friend_container').style.display = 'none';
    document.getElementById('f_checkbox').checked = false; 
    document.catalog.f_send.value = '0';
  }
}

function validateFields() {
return;
  country_sel = document.getElementById("country");
  if (!country_sel.selectedIndex.value) {
    alert("Please select your country of residence");
  }
}