function sub(name) {
 var morename = "more-"+name;
 if (document.getElementById(name).className == 'sub') {
  document.getElementById(name).className = 'subshow';
  document.getElementById(morename).className = 'less';
 } else {
  document.getElementById(name).className = 'sub';
  document.getElementById(morename).className = 'more';
 }
}