function dup_s_lastname() {
  var s = document.getElementById("s_lastname");
  if (s.value.length > 0) {
    document.getElementById("p1_lastname").value = s.value; 
  }
}

function dup_s_address() {
  var s = document.getElementById("s_address");
  if (s.value.length > 0) {
    document.getElementById("p1_address").value = s.value; 
  }
}

function dup_s_city() {
  var s = document.getElementById("s_city");
  if (s.value.length > 0) {
    document.getElementById("p1_city").value = s.value; 
  }
}

function dup_s_postal_code() {
  var s = document.getElementById("s_postal_code");
  if (s.value.length > 0) {
    document.getElementById("p1_postal_code").value = s.value; 
  }
}

function dup_p2() {
  var s = document.getElementById("p1_lastname");
  if (s.value.length > 0) {
    document.getElementById("p2_lastname").value = s.value; 
  }
  var s = document.getElementById("p1_address");
  if (s.value.length > 0) {
    document.getElementById("p2_address").value = s.value; 
  }
  var s = document.getElementById("p1_city");
  if (s.value.length > 0) {
    document.getElementById("p2_city").value = s.value; 
  }
  var s = document.getElementById("p1_postal_code");
  if (s.value.length > 0) {
    document.getElementById("p2_postal_code").value = s.value; 
  }
}