function showAdvanced () {

  var hideAdv=document.getElementById('Advanced');
  var linkAdv=document.getElementById('showAdv');
  var linkStd=document.getElementById('hideAdv');
  var advancedSearch=document.getElementById('advancedSearch');
  
  hideAdv.style.display='';
  linkAdv.style.display='none';
  linkStd.style.display='';
  advancedSearch.value='Y';

return true;
}

function hideAdvanced () {

  var hideAdv=document.getElementById('Advanced');
  var linkAdv=document.getElementById('showAdv');
  var linkStd=document.getElementById('hideAdv');
  var advancedSearch=document.getElementById('advancedSearch');

  hideAdv.style.display='none';
  linkAdv.style.display='';
  linkStd.style.display='none';
  advancedSearch.value='N';

return true;
}