/*@cc_on
eval((function(props) {
  var code = [];
  for (var i = 0,l = props.length;i<l;i++){
    var prop = props[i];
    window['_'+prop]=window[prop];
    code.push(prop+'=_'+prop)
  }
  return 'var '+code.join(',');
})('document self top parent alert setInterval clearInterval setTimeout clearTimeout'.split(' ')));
@*/
function tree2(menu_class,menu_id) {
 var div=document.getElementById(menu_id);
 if (div.style.display == "block") div.style.display="none";
 else {
  var sib=div.parentNode.childNodes;
  for (var i=0; i < sib.length; i++)
   if (sib[i].className == menu_class) sib[i].style.display="none";
  div.style.display="block";
 }
}