context: function MoveDown() {  var tree = document.getElementById('active_charsets');  if (tree.selectedItems.length == 1) {    var selected = tree.selectedItems[0];    if (selected.nextSibling) {      if (selected.nextSibling.nextSibling) {        selected.parentNode.insertBefore(selected, selected.nextSibling.nextSibling);      }      else {        selected.parentNode.appendChild(selected);      }      tree.selectItem(selected);    }  }  //enable_buttons_for_current_panels();  enable_save();} //MoveDown
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