function mainmenu() {
    try {
        $("#nav ul ").css({ display: "none" }); // Opera Fix


        $("#nav li").hover(function () {
            $(this).find('ul:first').css({ visibility: "visible", display: "none" }).show(400);
        }, function () {
            $(this).find('ul:first').css({ visibility: "hidden" });
        });
    } catch (er) { }
}



$(document).ready(function () {
    mainmenu();
});