$(document).ready(function(){
    $("#main_menu ul ul").hide();
    $("#main_menu ul ul .selected").parent().show();
    var items = new Array('file');
    for (idx in items){
        $("#current_" + items[idx]).change(function(){
            $.post('/' + url_path + 'update-current-item/',
                   {item:items[idx], value:$("#current_" + items[idx]).val()}
            );
        });
    }
});

$("#main_menu ul li").live('click', function(){
    $("#main_menu ul ul").hide('slow');
    $(this).find('ul').show('slow');
});