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

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