function viewEvent(id,type) {
  if (type>0) {
    document.getElementById('viewon'+id).style.display="none";
    document.getElementById('viewoff'+id).style.display="block";
    document.getElementById('odd'+id).style.display="block";
  } else {
    document.getElementById('viewon'+id).style.display="block";
    document.getElementById('viewoff'+id).style.display="none";
    document.getElementById('odd'+id).style.display="none";
  }
}