var $ = jQuery.noConflict();
$(document).ready( function() {
    /* Function for navigation menu and dropdown */
    $(" #menu ul ").css({
        display: "none"
    }); // Opera Fix
    $(" #menu li").hover( function() {
        $(this).find('ul:first').css({
            visibility: "visible",
            display: "none"
        }).slideDown(400);
    }, function() {
        $(this).find('ul:first').css({
            visibility: "hidden"
        });
    });
    $("li:has(ul)").addClass("parent")

});