$(document).ready(function () {

    var currentSubmenu = $('.selectedSubmenu').html();
    $('#submenu').html(currentSubmenu);

    $('.firstlevel').hover(
    function () {
        var currentId = $(this).attr('id');

        $('.firstlevel a').removeClass('selected');
        $('#' + currentId + 'link').addClass('selected');

        var currentSubmenu = $('#' + currentId + 'second').html();
        $('#submenu').html(currentSubmenu);
    },
    function () {
    }
    );

});