jQuery(document).ready(function($) {

    $("ul#top_navigation li").hover(
        function() {
            $(this).addClass("current").children('div.dropdown').css({ visibility: "visible", display: "none" }).show(400);
        }, function() {
            $(this).removeClass("current").children('div.dropdown').css({ visibility: "hidden" });
        }
    );

    $("div.dropdown a").hover(
        function() {
            var listItem = $(this).parent('li');
            var index = $('li.current div.dropdown li').index(listItem);
            var maxIndex = $('ul#top_navigation li.current .dropdown').find('li').size() - 1;

            if (index == 0) {
                $('li.current').find('.dropdown_top').css({ background: "url('images/common/dropdown_top_red.png') no-repeat top left transparent" });
            } else {
                $('li.current').find('.dropdown_top').css({ background: "url('images/common/dropdown_top_white.png') no-repeat top left transparent" });
            }

            if (index == maxIndex) {
                $('li.current').find('.dropdown_bottom').css({ background: "url('images/common/dropdown_bottom_red.png') no-repeat top left transparent" });
            } else {
                $('li.current').find('.dropdown_bottom').css({ background: "url('images/common/dropdown_bottom_white.png') no-repeat top left transparent" });
            }
            $(this).parent('li').addClass("curItem");

        }, function() {
            $('li.current').find('.dropdown_top').css({ background: "url('images/common/dropdown_top_white.png') no-repeat top left transparent" });
            $('li.current').find('.dropdown_bottom').css({ background: "url('images/common/dropdown_bottom_white.png') no-repeat top left transparent" });
            $(this).parent('li').removeClass("curItem");
        }
    );
});