// >>53 以下スクリプトです

var e = LL.getEvent();
var cont = e.getContainer();
var opener = cont.getOpener();

getcurrentfolder();

var it = e.getItem() || e.getContainer();
var folders = LL.getOpenFolders();
var foldersids = [];
if ( folders.getLength() ){

for ( var c = 0; c < folders.getLength(); c++ ){
foldersids.push( folders.getAt(c).getId() );
}
var idx = foldersids.indexOf(it.getId());

if ( idx != -1 ){
closefolders(folders,idx+1);
return;
}
else if ( opener ){
idx = foldersids.indexOf(opener.getId());
closefolders(folders,idx);
}
else closefolders(folders,folders.getLength());

}
if ( !it.getType().equals("Desktop") && !it.getType().equals("Container") ) it.launch();

function getcurrentfolder(){
if ( !opener || opener.getType().equals("Folder") ) return;
cont = opener.getParent();
opener = cont.getOpener();
getcurrentfolder();
}

function closefolders(folders,idx){
for ( var c = 0; c < idx; c++ ){
folders.getAt(c).close();
}
}