function hide(name) {
  var exp = new Date();
  var d_time = exp.getTime() + (365 * 24 * 60 * 60 * 1000);
  exp.setTime(d_time);
  if(document.getElementById(name).style.display=="none") {
    document.cookie = name+"= 1; expires=" + exp.toGMTString();
    document.getElementById(name).style.display=(''); }
  else {
    document.cookie = name+"= 0; expires=" + exp.toGMTString();
    document.getElementById(name).style.display=('none'); } }

function new_field(name) {
  if(document.getElementById('field_'+name).style.display=="none") {
    document.getElementById('field_'+name).style.display=('');
    if(document.getElementById('field_2').style.display=='') {
      document.getElementById('sel_1').style.display='none';
      document.getElementById('sel_2').style.display=''; }
    if(document.getElementById('field_3').style.display=='') {
      document.getElementById('sel_3').style.display='none';
      document.getElementById('sel_4').style.display=''; } }
  else {
    document.getElementById('field_'+name).style.display=('none');
    if(document.getElementById('field_2').style.display=='none') {
      document.getElementById('ui_1').value='';
      document.getElementById('sel_1').style.display='';
      document.getElementById('sel_2').style.display='none'; }
    if(document.getElementById('field_3').style.display=='none') {
      document.getElementById('ui_2').value='';
      document.getElementById('sel_3').style.display='';
      document.getElementById('sel_4').style.display='none'; } } }