/*
 * Multi-level Drop Down Menu 3.0
 * April 17, 2010
 * Corey Hart @ http://www.codenothing.com
 */ 
(function($, window, undefined) {
    // Needed for IE Compatibility (Closing menus must be done backwards in IE)
    // Ensure that no complications arise from other libraries modifying the 
    // array functionality (and hope that they store the old reverse function into _reverse)
    var el, a = Array.prototype, Reverse = a._reverse || a.reverse;

    // bgiframe is needed to fix z-index problem for IE6 users.
    // For applications that don't have bgiframe plugin installed, create a useless 
    // function that doesn't break the chain
    function emptyfn() {
        return this;
    }

    // Cache common event functions so they aren't instantiated with each event
    function clearSiblings() {
        $(el = this).children('a').removeClass($.data(el.parentNode, 'multi-ddm-classname'));
    }
    function oldMenus() {
        $(el = this).slideUp(50).siblings('a').removeClass($.data(el.parentNode.parentNode, 'multi-ddm-classname'));
    }

    // Expose the drop down menu
    $.fn.dropDownMenu = function(options) {
        return this.each(function() {
            // Defaults with metadata support
            var $main = $(this), i = 0, $menu, timeout,
				settings = $.extend({
				    timer: 500,
				    parentMO: undefined,
				    childMO: undefined,
				    bgiframe: undefined,
				    levels: []
				}, options || {}, $.metadata ? $main.metadata() : {}),

            // Check on every initiation, so bgiframe can be loaded after this plugin
				bgiframe = $.fn.bgiframe || $.fn.bgIframe || emptyfn;

            // Loop through each level, attach the bgiframe and store it's classname
            $menu = $main.data('multi-ddm-classname', settings.levels[0] || settings.parentMO || settings.childMO || '');
            while ($menu.length > 0) {
                $menu = bgiframe.call(
					$menu.find('> li > ul').data('multi-ddm-classname', settings.levels[++i] || settings.childMO || ''),
					settings.bgiframe
				);
            }

            // Use event delegation to track mouse movement across the menu
            $main.delegate('li', 'mouseenter.multi-ddm', function() {
                var self = $(el = this);

                $(this).css('cssText', 'color: #ffd24f !important');

                if (timeout) {
                    clearTimeout(timeout);
                }

                // Close old menus and remove hover of non-menus
                Reverse.call(self.siblings('li').find('ul:visible')).each(oldMenus).end().each(clearSiblings);

                // Open new menu and remove any lingering hover elements
                self.children('a').addClass($.data(el.parentNode, 'multi-ddm-classname')).siblings('ul').stop(true, true).slideDown({
                    duration: 1000,
                    easing: 'easeOutBounce'
                })

			   .children('li').each(clearSiblings);
            })
			.bind('mouseleave.multi-ddm', function() {
			    timeout = setTimeout(closemenu, settings.timer);
			    //$("#multi-ddm .parent").css('cssText', 'color: #fff !important');
			});

            // Closes all open menus
            function closemenu() {

                //$("#multi-ddm .parent").css('cssText', 'color: #fff !important');

                // Clear mouseovers
                $main.find('li').each(clearSiblings);

                // Close Menus backwards for IE Compatibility
                Reverse.call($main.find('ul:visible')).slideUp(50);
                if (timeout) {
                    clearTimeout(timeout);
                }
            }

            // Allows user option to close menus by clicking outside the menu on the body
            $(window.document).bind('click.multi-ddm', closemenu);
        });
    };
})(jQuery, window || this);