function decreaseTextSize(id) {
  var class_name = document.getElementById(id).className;
  
  if (class_name == 'article13') {
    document.getElementById(id).className = 'article11';
  }
}
function increaseTextSize(id) {
  var class_name = document.getElementById(id).className;
  
  if (class_name == 'article11') {
    document.getElementById(id).className = 'article13';
  }
}
function validateComment() {
  var name = document.getElementById('form_name');
  var content = document.getElementById('form_content');
  var error = false;
  
  if (name.value == '') {
    name.style.borderColor = 'red';
    error = true;
  }
  else {
    name.style.borderColor = '';
  }
  
  if (content.value == '') {
    content.style.borderColor = 'red';
    error = true;
  }
  else {
    content.style.borderColor = '';
  }
  
  if (error == true) {
    return false;
  }
  else {
    return true;
  }
}

function unObfuscateEmail() {
  var email = getElementsByName_iefix('a', 'obfuscated_email');
  
  for (e in email) {
    if (email[e].name == 'obfuscated_email') {      
      var mail = email[e].href;
      
      mail = mail.replace(/%20dot%20/g, ".");
      //mail = mail.replace(/%20dot%20/, ".");
      mail = mail.replace(/%20at%20/, "@");
      email[e].href = mail;      
    }
  }
}