/**
 * Single Drop Down Menu
 * March 24, 2008
 * Corey Hart @ http://www.codenothing.com
 *
 * @timer: milliseconds to keep dropped menus open
 * @parentMO: CSS class to add/remove to parent list on mouseover/mouseout's
 * @childMO: CSS class to add/remove to child list on mouseover/mouseout's
 */ 
;(function($) {
    // Define the function
    $.fn.singleDropMenu = function(options) {
        // Function Vars
        var timer; // ID of timeout set
        var menu; // ID of menu open
        // Default Settings
        var settings = $.extend({
            timer: 500,
            parentMO: "x",
            childMO: null
        }, options || {});
        // Run Menu
        this.each(function() {
            $('li', this).mouseover(function() {
                // Clear any open menus
                closemenu();
                // Open nested list
                $('a', this).addClass(settings.parentMO).siblings('ul').show();
            }).mouseout(function() {
                // Prevent auto close
                menu = this;
                timer = setTimeout(function() { closemenu() }, settings.timer);
            });
            /*
            // Dropped Menu Highlighting
            $('li ul li', this).mouseover(function() {
                $('a', this).addClass(settings.childMO);
            }).mouseout(function() {
                $('a', this).removeClass(settings.childMO);
            });
            */
        });

        // Closes any open menus when mouse click occurs anywhere else on the page
        $(document).click(function() { closemenu(); });

        // Function to close set menu
        var closemenu = function() {
            if (menu && timer) {
                $('a', menu).removeClass(settings.parentMO).siblings('ul').hide();
                clearTimeout(timer);
                menu = '';
            }
        }
    }
})(jQuery);