/* 
Simple JQuery menu.
HTML structure to use:

Notes: 

Each menu MUST have a class 'menu' set. If the menu doesn't have this, the JS won't make it dynamic
If you want a panel to be current-menu-ancestored at page load, give the containing LI element the classname 'current-menu-ancestor'.
Use this to set the right state in your page (generation) code.

Optional extra classnames for the UL element that holds an accordion:

noaccordion : no accordion functionality
collapsible : menu works like an accordion but can be fully collapsed

<ul class="menu [optional class] [optional class]">
<li><a href="#">Sub menu heading</a>
<ul>
<li><a href="http://site.com/">Link</a></li>
<li><a href="http://site.com/">Link</a></li>
<li><a href="http://site.com/">Link</a></li>
...
...
</ul>
// This item is open at page load time
<li class="current-menu-ancestor"><a href="#">Sub menu heading</a>
<ul>
<li><a href="http://site.com/">Link</a></li>
<li><a href="http://site.com/">Link</a></li>
<li><a href="http://site.com/">Link</a></li>
...
...
</ul>
...
...
</ul>

Copyright 2007-2010 by Marco van Hylckama Vlieg

web: http://www.i-marco.nl/weblog/
email: marco@i-marco.nl

Free to use any way you like.
*/


jQuery.fn.initMenu = function() {  
    return this.each(function(){
        var theMenu = $(this).get(0);
        $('.sub-menu', this).hide();
        $('li.current-menu-ancestor > .sub-menu', this).show();
        $('li.current-menu-ancestor > .sub-menu', this).prev().addClass('active');
        $('li a', this).click(
            function(e) {
                e.stopImmediatePropagation();
                var theElement = $(this).next();
                var parent = this.parentNode.parentNode;
                if($(parent).hasClass('noaccordion')) {
                    if(theElement[0] === undefined) {
                        window.location.href = this.href;
                    }
                    $(theElement).slideToggle('normal', function() {
                        if ($(this).is(':visible')) {
                            $(this).prev().addClass('active');
                        }
                        else {
                            $(this).prev().removeClass('active');
                        }    
                    });
                    return false;
                }
                else {
                    if(theElement.hasClass('sub-menu') && theElement.is(':visible')) {
                        if($(parent).hasClass('collapsible')) {
                            $('.sub-menu:visible', parent).first().slideUp('normal', 
                            function() {
                                $(this).prev().removeClass('active');
                            }
                        );
                        return false;  
                    }
                    return false;
                }
                if(theElement.hasClass('sub-menu') && !theElement.is(':visible')) {         
                    $('.sub-menu:visible', parent).first().slideUp('normal', function() {
                        $(this).prev().removeClass('active');
                    });
                    theElement.slideDown('normal', function() {
                        $(this).prev().addClass('active');
                    });
                    return false;
                }
            }
        }
    );
});
};

$(document).ready(function() {$('.menu').initMenu();});